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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Amy Spero

Bib: 21363 •F •Age: N/A

MD

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 49%
Masters (Masters Women)
#0 / 6862
Top 37%
Age Group (F45-49)
#0 / 1786
Top 47%
Race Day Weather
51°/41°F
overcast clouds

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
25:44
3.11 mi
Rank: #18770
Start → 5K
25:44 | 8:17/mi
10K
51:15
6.21 mi
Rank: #18701 (+69)
5K → 10K
25:31 | 8:13/mi
15K
1:16:38
9.32 mi
Rank: #18531 (+170)
10K → 15K
25:23 | 8:11/mi
20K
1:42:07
12.43 mi
Rank: #18264 (+267)
15K → 20K
25:29 | 8:13/mi
HALF
1:47:39
13.11 mi
Rank: #18247 (+17)
20K → HALF
5:32 | 8:08/mi
25K
2:07:35
15.53 mi
Rank: #18031 (+216)
HALF → 25K
19:56 | 8:14/mi
30K
2:33:34
18.64 mi
Rank: #17633 (+398)
25K → 30K
25:59 | 8:22/mi
20M
2:45:06
20.00 mi
Rank: #17502 (+131)
30K → 20M
11:32 | 8:30/mi
21M
2:54:04
21.00 mi
Rank: #17391 (+111)
20M → 21M
8:58 | 8:58/mi
35K
3:00:19
21.75 mi
Rank: #17341 (+50)
21M → 35K
6:15 | 8:22/mi
23M
3:10:56
23.00 mi
Rank: #17222 (+119)
35K → 23M
10:37 | 8:30/mi
24M
3:19:22
24.00 mi
Rank: #17155 (+67)
23M → 24M
8:26 | 8:26/mi
40K
3:26:43
24.85 mi
Rank: #17100 (+55)
24M → 40K
7:21 | 8:36/mi
25.2M
3:29:55
25.20 mi
Rank: #17090 (+10)
40K → 25.2M
3:12 | 9:17/mi
FINISH
3:38:30
26.22 mi
Rank: #17097 (-7)
25.2M → FINISH
8:35 | 8:26/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:39
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:50:51
Pace8:28 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5825:448:1725:44
8:17
-
10K
6.21 mi11:52:2951:158:1525:31
8:13
-0:04
15K
9.32 mi12:17:521:16:388:1425:23
8:11
-0:02
20K
12.43 mi12:43:211:42:078:1425:29
8:13
+0:02
HALF
13.11 mi12:48:531:47:398:135:32
8:08
-0:05
25K
15.53 mi13:08:492:07:358:1319:56
8:14
+0:06
30K
18.64 mi13:34:482:33:348:1525:59
8:22
+0:08
20M
20.00 mi13:46:202:45:068:1611:32
8:30
+0:08
21M
21.00 mi13:55:182:54:048:188:58
8:58
+0:28
35K
21.75 mi14:01:333:00:198:186:15
8:22
-0:36
23M
23.00 mi14:12:103:10:568:1910:37
8:30
+0:08
24M
24.00 mi14:20:363:19:228:198:26
8:26
-0:04
40K
24.85 mi14:27:573:26:438:207:21
8:36
+0:10
25.2M
25.20 mi14:31:093:29:558:203:12
9:17
+0:41
FINISH
26.22 mi14:39:443:38:308:218:35
8:26
-0:51

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

8:08 /mi

Average Pace

8:20 /mi

Slowest Pace

9:17 /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

3:26:20

94% of race

Time at Steady Pace

12:10

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:20 /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 mi11:26:5825:448:1725:44
8:17
#18770
10K
6.21 mi11:52:2951:158:1525:31
8:13
#18701
15K
9.32 mi12:17:521:16:388:1425:23
8:11
#18531
20K
12.43 mi12:43:211:42:078:1425:29
8:13
#18264
HALF
13.11 mi12:48:531:47:398:135:32
8:08
#18247
25K
15.53 mi13:08:492:07:358:1319:56
8:14
#18031
30K
18.64 mi13:34:482:33:348:1525:59
8:22
#17633
20M
20.00 mi13:46:202:45:068:1611:32
8:30
#17502
21M
21.00 mi13:55:182:54:048:188:58
8:58
#17391
35K
21.75 mi14:01:333:00:198:186:15
8:22
#17341
23M
23.00 mi14:12:103:10:568:1910:37
8:30
#17222
24M
24.00 mi14:20:363:19:228:198:26
8:26
#17155
40K
24.85 mi14:27:573:26:438:207:21
8:36
#17100
25.2M
25.20 mi14:31:093:29:558:203:12
9:17
#17090
FINISH
26.22 mi14:39:443:38:308:218:35
8:26
#17097
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi187706954695418153(Top 63%)6559(Top 52%)6559(Top 367%)
10K6.21 mi3.10 mi18701+696889+656889+6518650(Top 64%)6822(Top 54%)6822(Top 382%)
15K9.32 mi3.11 mi18531+1706774+1156774+11518153(Top 63%)6559(Top 52%)6559(Top 367%)
20K12.43 mi3.11 mi18264+2676634+1406634+14017505(Top 60%)6225(Top 49%)6225(Top 349%)
HALF13.11 mi0.68 mi18247+176626+86626+817932(Top 62%)6422(Top 51%)6422(Top 360%)
25K15.53 mi2.42 mi18031+2166516+1106516+11016933(Top 58%)5948(Top 47%)5948(Top 333%)
30K18.64 mi3.11 mi17633+3986312+2046312+20416050(Top 55%)5547(Top 44%)5547(Top 311%)
20M20.00 mi1.36 mi17502+1316262+506262+5016171(Top 56%)5742(Top 46%)5742(Top 322%)
21M21.00 mi1.00 mi17391+1116212+506212+5015977(Top 55%)5677(Top 45%)5677(Top 318%)
35K21.75 mi0.75 mi17341+506204+86204+816795(Top 58%)6206(Top 49%)6206(Top 347%)
23M23.00 mi1.25 mi17222+1196164+406164+4015640(Top 54%)5636(Top 45%)5636(Top 316%)
24M24.00 mi1.00 mi17155+676150+146150+1416521(Top 57%)6200(Top 49%)6200(Top 347%)
40K24.85 mi0.85 mi17100+556143+76143+716298(Top 56%)6142(Top 49%)6142(Top 344%)
25.2M25.20 mi0.35 mi17090+106147-46147-416277(Top 56%)6113(Top 49%)6113(Top 342%)
FINISH26.22 mi1.02 mi17097-76170-236170-2317758(Top 61%)6915(Top 55%)6915(Top 387%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21
+97ft-345ft

Overall

18153

Females

6559

F45-49

6559

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18650

Females

6822

F45-49

6822

10K→15K

6.2 - 9.3 mi

Top 63%
×3
+67ft-78ft

Overall

18153

Females

6559

F45-49

6559

15K→20K

9.3 - 12.4 mi

Top 60%
×5
+106ft-86ft

Overall

17505

Females

6225

F45-49

6225

20K→HALF

12.4 - 13.1 mi

Top 62%
×2
+19ft-37ft

Overall

17932

Females

6422

F45-49

6422

HALF→25K

13.1 - 15.5 mi

Top 58%
×4
+66ft-88ft

Overall

16933

Females

5948

F45-49

5948

25K→30K

15.5 - 18.6 mi

Top 55%
×9
+181ft-148ft

Overall

16050

Females

5547

F45-49

5547

30K→20M

18.6 - 20.0 mi

Top 56%
×5
+64ft-50ft

Overall

16171

Females

5742

F45-49

5742

20M→21M

20.0 - 21.0 mi

Top 55%
×8
+106ft-24ft

Overall

15977

Females

5677

F45-49

5677

21M→35K

21.0 - 21.8 mi

Top 58%
×7
+17ft-86ft

Overall

16795

Females

6206

F45-49

6206

35K→23M

21.8 - 23.0 mi

Top 54%
×5
+23ft-63ft

Overall

15640

Females

5636

F45-49

5636

23M→24M

23.0 - 24.0 mi

Top 57%
×6
+12ft-82ft

Overall

16521

Females

6200

F45-49

6200

24M→40K

24.0 - 24.9 mi

Top 56%
×1
+6ft-20ft

Overall

16298

Females

6142

F45-49

6142

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1
+13ft-16ft

Overall

16277

Females

6113

F45-49

6113

25.2M→FINISH

25.2 - 26.2 mi

Top 61%
×2
+22ft-21ft

Overall

17758

Females

6915

F45-49

6915

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2373*
Passed By
700
Net Change
+1673
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18770
5K → 10K269*200+69#18770#18701
10K → 15K265*95+170#18701#18531
15K → 20K317*50+267#18531#18264
20K → HALF3720+17#18264#18247
HALF → 25K236*20+216#18247#18031
25K → 30K432*34+398#18031#17633
30K → 20M15827+131#17633#17502
20M → 21M13524+111#17502#17391
21M → 35K7929+50#17391#17341
35K → 23M16344+119#17341#17222
23M → 24M10134+67#17222#17155
24M → 40K9540+55#17155#17100
40K → 25.2M3020+10#17100#17090
25.2M → FINISH5663-7#17090#17097
TOTALS2373*700+1673

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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

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OTQ

Olympic Trials Qualifying analysis available

Activity Data

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