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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Kelsey Scarzello

Bib: 17990 •F •Age: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°F
overcast clouds
Personalized for Kelsey

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 8:53/mi at mile 3.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Potential Focus Areas
One-time purchase · Instant access · Downloadable PDF · Shareable report

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
27:35
3.11 mi
Rank: #22087
Start → 5K
27:35 | 8:53/mi
10K
57:03
6.21 mi
Rank: #23486 (-1399)
5K → 10K
29:28 | 9:30/mi
15K
1:25:40
9.32 mi
Rank: #23516 (-30)
10K → 15K
28:37 | 9:13/mi
20K
1:58:30
12.43 mi
Rank: #24425 (-909)
15K → 20K
32:50 | 10:35/mi
HALF
2:05:01
13.11 mi
Rank: #24432 (-7)
20K → HALF
6:31 | 9:34/mi
25K
2:29:03
15.53 mi
Rank: #24384 (+48)
HALF → 25K
24:02 | 9:55/mi
30K
3:02:42
18.64 mi
Rank: #24478 (-94)
25K → 30K
33:39 | 10:50/mi
20M
3:16:37
20.00 mi
Rank: #24395 (+83)
30K → 20M
13:55 | 10:15/mi
21M
3:30:13
21.00 mi
Rank: #24631 (-236)
20M → 21M
13:36 | 13:36/mi
35K
3:40:05
21.75 mi
Rank: #24810 (-179)
21M → 35K
9:52 | 13:12/mi
23M
3:52:57
23.00 mi
Rank: #24705 (+105)
35K → 23M
12:52 | 10:17/mi
24M
4:03:36
24.00 mi
Rank: #24705
23M → 24M
10:39 | 10:39/mi
40K
4:12:15
24.85 mi
Rank: #24605 (+100)
24M → 40K
8:39 | 10:08/mi
25.2M
4:15:51
25.20 mi
Rank: #24545 (+60)
40K → 25.2M
3:36 | 10:27/mi
FINISH
4:26:10
26.22 mi
Rank: #24535 (+10)
25.2M → FINISH
10:19 | 10:08/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:05:01
Pace9:33 /mi
2nd Half
Distance13.11 mi
Time2:21:09
Pace10:47 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:10:2127:358:5327:35
8:53
-
10K
6.21 mi11:39:4957:039:1129:28
9:30
+0:37
15K
9.32 mi12:08:261:25:409:1228:37
9:13
-0:17
20K
12.43 mi12:41:161:58:309:3332:50
10:35
+1:22
HALF
13.11 mi12:47:472:05:019:336:31
9:34
-1:01
25K
15.53 mi13:11:492:29:039:3624:02
9:55
+0:21
30K
18.64 mi13:45:283:02:429:4933:39
10:50
+0:55
20M
20.00 mi13:59:233:16:379:5013:55
10:15
-0:35
21M
21.00 mi14:12:593:30:1310:0113:36
13:36
+3:21
35K
21.75 mi14:22:513:40:0510:089:52
13:12
-0:24
23M
23.00 mi14:35:433:52:5710:0812:52
10:17
-2:55
24M
24.00 mi14:46:224:03:3610:1010:39
10:39
+0:22
40K
24.85 mi14:55:014:12:1510:098:39
10:08
-0:31
25.2M
25.20 mi14:58:374:15:5110:103:36
10:27
+0:19
FINISH
26.22 mi15:08:564:26:1010:1010:19
10:08
-0:19

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:53 /mi

Average Pace

10:10 /mi

Slowest Pace

13:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:32:11

35% of race

Time at Steady Pace

2:30:31

57% of race

Time at Slower Pace

23:28

9% of race

Average Pace: 10:09 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:10:2127:358:5327:35
8:53
#22087
10K
6.21 mi11:39:4957:039:1129:28
9:30
#23486
15K
9.32 mi12:08:261:25:409:1228:37
9:13
#23516
20K
12.43 mi12:41:161:58:309:3332:50
10:35
#24425
HALF
13.11 mi12:47:472:05:019:336:31
9:34
#24432
25K
15.53 mi13:11:492:29:039:3624:02
9:55
#24384
30K
18.64 mi13:45:283:02:429:4933:39
10:50
#24478
20M
20.00 mi13:59:233:16:379:5013:55
10:15
#24395
21M
21.00 mi14:12:593:30:1310:0113:36
13:36
#24631
35K
21.75 mi14:22:513:40:0510:089:52
13:12
#24810
23M
23.00 mi14:35:433:52:5710:0812:52
10:17
#24705
24M
24.00 mi14:46:224:03:3610:1010:39
10:39
#24705
40K
24.85 mi14:55:014:12:1510:098:39
10:08
#24605
25.2M
25.20 mi14:58:374:15:5110:103:36
10:27
#24545
FINISH
26.22 mi15:08:564:26:1010:1010:19
10:08
#24535
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi220878736873623545(Top 81%)9435(Top 75%)9435(Top 165%)
10K6.21 mi3.10 mi23486-13999402-6669402-66624550(Top 85%)9942(Top 79%)9942(Top 174%)
15K9.32 mi3.11 mi23516-309417-159417-1523545(Top 81%)9435(Top 75%)9435(Top 165%)
20K12.43 mi3.11 mi24425-9099872-4559872-45526276(Top 91%)10909(Top 87%)10909(Top 191%)
HALF13.11 mi0.68 mi24432-79879-79879-724562(Top 85%)9981(Top 79%)9981(Top 175%)
25K15.53 mi2.42 mi24384+489866+139866+1324082(Top 83%)9754(Top 78%)9754(Top 171%)
30K18.64 mi3.11 mi24478-949946-809946-8025014(Top 86%)10379(Top 83%)10379(Top 182%)
20M20.00 mi1.36 mi24395+839918+289918+2823229(Top 80%)9499(Top 76%)9499(Top 166%)
21M21.00 mi1.00 mi24631-23610058-14010058-14026969(Top 93%)11539(Top 92%)11539(Top 202%)
35K21.75 mi0.75 mi24810-17910163-10510163-10527866(Top 96%)12018(Top 96%)12018(Top 210%)
23M23.00 mi1.25 mi24705+10510122+4110122+4122875(Top 79%)9459(Top 75%)9459(Top 165%)
24M24.00 mi1.00 mi2470510134-1210134-1224392(Top 84%)10287(Top 82%)10287(Top 180%)
40K24.85 mi0.85 mi24605+10010099+3510099+3522279(Top 77%)9247(Top 74%)9247(Top 162%)
25.2M25.20 mi0.35 mi24545+6010073+2610073+2620941(Top 72%)8552(Top 68%)8552(Top 150%)
FINISH26.22 mi1.02 mi24535+1010092-1910092-1924176(Top 83%)10208(Top 81%)10208(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21
+97ft-345ft

Overall

23545

Females

9435

F18-39

9435

5K→10K

3.1 - 6.2 mi

Top 85%
×5
+79ft-138ft

Overall

24550

Females

9942

F18-39

9942

10K→15K

6.2 - 9.3 mi

Top 81%
×3
+67ft-78ft

Overall

23545

Females

9435

F18-39

9435

15K→20K

9.3 - 12.4 mi

Top 91%
×5
+106ft-86ft

Overall

26276

Females

10909

F18-39

10909

20K→HALF

12.4 - 13.1 mi

Top 85%
×2
+19ft-37ft

Overall

24562

Females

9981

F18-39

9981

HALF→25K

13.1 - 15.5 mi

Top 83%
×4
+66ft-88ft

Overall

24082

Females

9754

F18-39

9754

25K→30K

15.5 - 18.6 mi

Top 86%
×9
+181ft-148ft

Overall

25014

Females

10379

F18-39

10379

30K→20M

18.6 - 20.0 mi

Top 80%
×5
+64ft-50ft

Overall

23229

Females

9499

F18-39

9499

20M→21M

20.0 - 21.0 mi

Top 93%
×8
+106ft-24ft

Overall

26969

Females

11539

F18-39

11539

21M→35K

21.0 - 21.8 mi

Top 96%
×7
+17ft-86ft

Overall

27866

Females

12018

F18-39

12018

35K→23M

21.8 - 23.0 mi

Top 79%
×5
+23ft-63ft

Overall

22875

Females

9459

F18-39

9459

23M→24M

23.0 - 24.0 mi

Top 84%
×6
+12ft-82ft

Overall

24392

Females

10287

F18-39

10287

24M→40K

24.0 - 24.9 mi

Top 77%
×1
+6ft-20ft

Overall

22279

Females

9247

F18-39

9247

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1
+13ft-16ft

Overall

20941

Females

8552

F18-39

8552

25.2M→FINISH

25.2 - 26.2 mi

Top 83%
×2
+22ft-21ft

Overall

24176

Females

10208

F18-39

10208

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
929
Passed By
1391
Net Change
-2448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22087
5K → 10K14200-1399#22087#23486
10K → 15K142172-30#23486#23516
15K → 20K10200-909#23516#24425
20K → HALF2330-7#24425#24432
HALF → 25K12779+48#24432#24384
25K → 30K110200-94#24384#24478
30K → 20M11027+83#24478#24395
20M → 21M14200-236#24395#24631
21M → 35K7186-179#24631#24810
35K → 23M11510+105#24810#24705
23M → 24M39390#24705#24705
24M → 40K1033+100#24705#24605
40K → 25.2M633+60#24605#24545
25.2M → FINISH5242+10#24545#24535
TOTALS9291391-2448
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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