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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Alexandra Delarosa

Bib: 29239 •F •Age: N/A

CO

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

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
27:02
3.11 mi
Rank: #21213
Start → 5K
27:02 | 8:43/mi
10K
53:04
6.21 mi
Rank: #20402 (+811)
5K → 10K
26:02 | 8:23/mi
15K
1:19:46
9.32 mi
Rank: #20484 (-82)
10K → 15K
26:42 | 8:36/mi
20K
1:46:51
12.43 mi
Rank: #20473 (+11)
15K → 20K
27:05 | 8:44/mi
HALF
1:52:45
13.11 mi
Rank: #20510 (-37)
20K → HALF
5:54 | 8:40/mi
25K
2:15:12
15.53 mi
Rank: #20844 (-334)
HALF → 25K
22:27 | 9:16/mi
30K
2:45:46
18.64 mi
Rank: #21281 (-437)
25K → 30K
30:34 | 9:51/mi
20M
2:59:24
20.00 mi
Rank: #21413 (-132)
30K → 20M
13:38 | 10:03/mi
21M
3:10:23
21.00 mi
Rank: #21570 (-157)
20M → 21M
10:59 | 10:59/mi
35K
3:18:26
21.75 mi
Rank: #21753 (-183)
21M → 35K
8:03 | 10:46/mi
23M
3:31:03
23.00 mi
Rank: #21833 (-80)
35K → 23M
12:37 | 10:05/mi
24M
3:40:45
24.00 mi
Rank: #21876 (-43)
23M → 24M
9:42 | 9:42/mi
40K
3:49:13
24.85 mi
Rank: #21893 (-17)
24M → 40K
8:28 | 9:55/mi
25.2M
3:53:04
25.20 mi
Rank: #21917 (-24)
40K → 25.2M
3:51 | 11:10/mi
FINISH
4:02:18
26.22 mi
Rank: #21872 (+45)
25.2M → FINISH
9:14 | 9:04/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:45
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:09:33
Pace9:53 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2227:028:4327:02
8:43
-
10K
6.21 mi12:16:2453:048:3326:02
8:23
-0:20
15K
9.32 mi12:43:061:19:468:3426:42
8:36
+0:13
20K
12.43 mi13:10:111:46:518:3627:05
8:44
+0:08
HALF
13.11 mi13:16:051:52:458:375:54
8:40
-0:04
25K
15.53 mi13:38:322:15:128:4322:27
9:16
+0:36
30K
18.64 mi14:09:062:45:468:5430:34
9:51
+0:35
20M
20.00 mi14:22:442:59:248:5913:38
10:03
+0:12
21M
21.00 mi14:33:433:10:239:0410:59
10:59
+0:56
35K
21.75 mi14:41:463:18:269:088:03
10:46
-0:13
23M
23.00 mi14:54:233:31:039:1112:37
10:05
-0:41
24M
24.00 mi15:04:053:40:459:129:42
9:42
-0:23
40K
24.85 mi15:12:333:49:139:148:28
9:55
+0:13
25.2M
25.20 mi15:16:243:53:049:153:51
11:10
+1:15
FINISH
26.22 mi15:25:384:02:189:159:14
9:04
-2:06

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

8:23 /mi

Average Pace

9:15 /mi

Slowest Pace

11:10 /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

2:01:59

50% of race

Time at Steady Pace

1:37:26

40% of race

Time at Slower Pace

22:53

9% of race

Average Pace: 9:14 /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 mi11:50:2227:028:4327:02
8:43
#21213
10K
6.21 mi12:16:2453:048:3326:02
8:23
#20402
15K
9.32 mi12:43:061:19:468:3426:42
8:36
#20484
20K
12.43 mi13:10:111:46:518:3627:05
8:44
#20473
HALF
13.11 mi13:16:051:52:458:375:54
8:40
#20510
25K
15.53 mi13:38:322:15:128:4322:27
9:16
#20844
30K
18.64 mi14:09:062:45:468:5430:34
9:51
#21281
20M
20.00 mi14:22:442:59:248:5913:38
10:03
#21413
21M
21.00 mi14:33:433:10:239:0410:59
10:59
#21570
35K
21.75 mi14:41:463:18:269:088:03
10:46
#21753
23M
23.00 mi14:54:233:31:039:1112:37
10:05
#21833
24M
24.00 mi15:04:053:40:459:129:42
9:42
#21876
40K
24.85 mi15:12:333:49:139:148:28
9:55
#21893
25.2M
25.20 mi15:16:243:53:049:153:51
11:10
#21917
FINISH
26.22 mi15:25:384:02:189:159:14
9:04
#21872
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 mi212138292829220660(Top 71%)7939(Top 63%)7939(Top 139%)
10K6.21 mi3.10 mi20402+8117831+4617831+46119671(Top 68%)7420(Top 59%)7420(Top 130%)
15K9.32 mi3.11 mi20484-827861-307861-3020660(Top 71%)7939(Top 63%)7939(Top 139%)
20K12.43 mi3.11 mi20473+117871-107871-1020552(Top 71%)7925(Top 63%)7925(Top 139%)
HALF13.11 mi0.68 mi20510-377891-207891-2021155(Top 73%)8206(Top 65%)8206(Top 144%)
25K15.53 mi2.42 mi20844-3348080-1898080-18922252(Top 77%)8808(Top 70%)8808(Top 154%)
30K18.64 mi3.11 mi21281-4378312-2328312-23222678(Top 78%)9109(Top 72%)9109(Top 159%)
20M20.00 mi1.36 mi21413-1328403-918403-9122686(Top 78%)9203(Top 73%)9203(Top 161%)
21M21.00 mi1.00 mi21570-1578494-918494-9123073(Top 80%)9465(Top 75%)9465(Top 166%)
35K21.75 mi0.75 mi21753-1838600-1068600-10624818(Top 86%)10418(Top 83%)10418(Top 182%)
23M23.00 mi1.25 mi21833-808659-598659-5922374(Top 77%)9185(Top 73%)9185(Top 161%)
24M24.00 mi1.00 mi21876-438694-358694-3521983(Top 76%)9032(Top 72%)9032(Top 158%)
40K24.85 mi0.85 mi21893-178708-148708-1421676(Top 75%)8937(Top 71%)8937(Top 156%)
25.2M25.20 mi0.35 mi21917-248724-168724-1622778(Top 78%)9481(Top 75%)9481(Top 166%)
FINISH26.22 mi1.02 mi21872+458713+118713+1120792(Top 72%)8471(Top 67%)8471(Top 148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21
+97ft-345ft

Overall

20660

Females

7939

F18-39

7939

5K→10K

3.1 - 6.2 mi

Top 68%
×5
+79ft-138ft

Overall

19671

Females

7420

F18-39

7420

10K→15K

6.2 - 9.3 mi

Top 71%
×3
+67ft-78ft

Overall

20660

Females

7939

F18-39

7939

15K→20K

9.3 - 12.4 mi

Top 71%
×5
+106ft-86ft

Overall

20552

Females

7925

F18-39

7925

20K→HALF

12.4 - 13.1 mi

Top 73%
×2
+19ft-37ft

Overall

21155

Females

8206

F18-39

8206

HALF→25K

13.1 - 15.5 mi

Top 77%
×4
+66ft-88ft

Overall

22252

Females

8808

F18-39

8808

25K→30K

15.5 - 18.6 mi

Top 78%
×9
+181ft-148ft

Overall

22678

Females

9109

F18-39

9109

30K→20M

18.6 - 20.0 mi

Top 78%
×5
+64ft-50ft

Overall

22686

Females

9203

F18-39

9203

20M→21M

20.0 - 21.0 mi

Top 80%
×8
+106ft-24ft

Overall

23073

Females

9465

F18-39

9465

21M→35K

21.0 - 21.8 mi

Top 86%
×7
+17ft-86ft

Overall

24818

Females

10418

F18-39

10418

35K→23M

21.8 - 23.0 mi

Top 77%
×5
+23ft-63ft

Overall

22374

Females

9185

F18-39

9185

23M→24M

23.0 - 24.0 mi

Top 76%
×6
+12ft-82ft

Overall

21983

Females

9032

F18-39

9032

24M→40K

24.0 - 24.9 mi

Top 75%
×1
+6ft-20ft

Overall

21676

Females

8937

F18-39

8937

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1
+13ft-16ft

Overall

22778

Females

9481

F18-39

9481

25.2M→FINISH

25.2 - 26.2 mi

Top 72%
×2
+22ft-21ft

Overall

20792

Females

8471

F18-39

8471

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1674*
Passed By
1792
Net Change
-659
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21213
5K → 10K879*68+811#21213#20402
10K → 15K163200-82#20402#20484
15K → 20K170159+11#20484#20473
20K → HALF2158-37#20473#20510
HALF → 25K60200-334#20510#20844
25K → 30K61200-437#20844#21281
30K → 20M58190-132#21281#21413
20M → 21M47200-157#21413#21570
21M → 35K11194-183#21570#21753
35K → 23M51131-80#21753#21833
23M → 24M4083-43#21833#21876
24M → 40K3451-17#21876#21893
40K → 25.2M1034-24#21893#21917
25.2M → FINISH6924+45#21917#21872
TOTALS1674*1792-659

* 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

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

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