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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Shelby Foster

Bib: 10756 •F •Age: N/A

PA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 28%
Gender (Female)
#0 / 12578
Top 11%
Age Group (F18-39)
#0 / 5716
Top 21%
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
21:20
3.11 mi
Rank: #7471
Start → 5K
21:20 | 6:52/mi
10K
42:44
6.21 mi
Rank: #7656 (-185)
5K → 10K
21:24 | 6:54/mi
15K
1:04:03
9.32 mi
Rank: #7565 (+91)
10K → 15K
21:19 | 6:52/mi
20K
1:25:33
12.43 mi
Rank: #7462 (+103)
15K → 20K
21:30 | 6:56/mi
HALF
1:30:13
13.11 mi
Rank: #7461 (+1)
20K → HALF
4:40 | 6:51/mi
25K
1:47:14
15.53 mi
Rank: #7434 (+27)
HALF → 25K
17:01 | 7:01/mi
30K
2:09:51
18.64 mi
Rank: #7463 (-29)
25K → 30K
22:37 | 7:17/mi
20M
2:20:11
20.00 mi
Rank: #7574 (-111)
30K → 20M
10:20 | 7:37/mi
21M
2:28:23
21.00 mi
Rank: #7706 (-132)
20M → 21M
8:12 | 8:12/mi
35K
2:33:58
21.75 mi
Rank: #7776 (-70)
21M → 35K
5:35 | 7:28/mi
23M
2:43:40
23.00 mi
Rank: #7872 (-96)
35K → 23M
9:42 | 7:46/mi
24M
2:51:14
24.00 mi
Rank: #7957 (-85)
23M → 24M
7:34 | 7:34/mi
40K
2:58:03
24.85 mi
Rank: #8064 (-107)
24M → 40K
6:49 | 7:59/mi
25.2M
3:00:57
25.20 mi
Rank: #8095 (-31)
40K → 25.2M
2:54 | 8:25/mi
FINISH
3:08:27
26.22 mi
Rank: #8149 (-54)
25.2M → FINISH
7:30 | 7:22/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
Time1:30:13
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:38:14
Pace7:30 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:39:0121:206:5221:20
6:52
-
10K
6.21 mi11:00:2542:446:5321:24
6:54
+0:02
15K
9.32 mi11:21:441:04:036:5321:19
6:52
-0:02
20K
12.43 mi11:43:141:25:336:5421:30
6:56
+0:04
HALF
13.11 mi11:47:541:30:136:534:40
6:51
-0:05
25K
15.53 mi12:04:551:47:146:5517:01
7:01
+0:10
30K
18.64 mi12:27:322:09:516:5822:37
7:17
+0:16
20M
20.00 mi12:37:522:20:117:0110:20
7:37
+0:20
21M
21.00 mi12:46:042:28:237:048:12
8:12
+0:35
35K
21.75 mi12:51:392:33:587:055:35
7:28
-0:44
23M
23.00 mi13:01:212:43:407:079:42
7:46
+0:18
24M
24.00 mi13:08:552:51:147:097:34
7:34
-0:12
40K
24.85 mi13:15:442:58:037:106:49
7:59
+0:25
25.2M
25.20 mi13:18:383:00:577:112:54
8:25
+0:26
FINISH
26.22 mi13:26:083:08:277:127:30
7:22
-1:03

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

6:51 /mi

Average Pace

7:12 /mi

Slowest Pace

8:25 /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

1:47:14

57% of race

Time at Steady Pace

43:16

23% of race

Time at Slower Pace

37:57

20% of race

Average Pace: 7:11 /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 mi10:39:0121:206:5221:20
6:52
#7471
10K
6.21 mi11:00:2542:446:5321:24
6:54
#7656
15K
9.32 mi11:21:441:04:036:5321:19
6:52
#7565
20K
12.43 mi11:43:141:25:336:5421:30
6:56
#7462
HALF
13.11 mi11:47:541:30:136:534:40
6:51
#7461
25K
15.53 mi12:04:551:47:146:5517:01
7:01
#7434
30K
18.64 mi12:27:322:09:516:5822:37
7:17
#7463
20M
20.00 mi12:37:522:20:117:0110:20
7:37
#7574
21M
21.00 mi12:46:042:28:237:048:12
8:12
#7706
35K
21.75 mi12:51:392:33:587:055:35
7:28
#7776
23M
23.00 mi13:01:212:43:407:079:42
7:46
#7872
24M
24.00 mi13:08:552:51:147:097:34
7:34
#7957
40K
24.85 mi13:15:442:58:037:106:49
7:59
#8064
25.2M
25.20 mi13:18:383:00:577:112:54
8:25
#8095
FINISH
26.22 mi13:26:083:08:277:127:30
7:22
#8149
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 mi74719129127473(Top 26%)953(Top 8%)953(Top 17%)
10K6.21 mi3.10 mi7656-185979-67979-677840(Top 27%)1034(Top 8%)1034(Top 18%)
15K9.32 mi3.11 mi7565+91948+31948+317473(Top 26%)953(Top 8%)953(Top 17%)
20K12.43 mi3.11 mi7462+103935+13935+137285(Top 25%)906(Top 7%)906(Top 16%)
HALF13.11 mi0.68 mi7461+1934+1934+17597(Top 26%)1000(Top 8%)1000(Top 17%)
25K15.53 mi2.42 mi7434+27936-2936-27549(Top 26%)1051(Top 8%)1051(Top 18%)
30K18.64 mi3.11 mi7463-29964-28964-287939(Top 27%)1336(Top 11%)1336(Top 23%)
20M20.00 mi1.36 mi7574-1111011-471011-479901(Top 34%)2331(Top 19%)2331(Top 41%)
21M21.00 mi1.00 mi7706-1321074-631074-6311194(Top 39%)3070(Top 24%)3070(Top 54%)
35K21.75 mi0.75 mi7776-701125-511125-5110559(Top 36%)2756(Top 22%)2756(Top 48%)
23M23.00 mi1.25 mi7872-961195-701195-7010676(Top 37%)2935(Top 23%)2935(Top 51%)
24M24.00 mi1.00 mi7957-851247-521247-5210619(Top 37%)2961(Top 24%)2961(Top 52%)
40K24.85 mi0.85 mi8064-1071327-801327-8012324(Top 42%)3937(Top 31%)3937(Top 69%)
25.2M25.20 mi0.35 mi8095-311352-251352-2511034(Top 38%)3325(Top 26%)3325(Top 58%)
FINISH26.22 mi1.02 mi8149-541400-481400-4810359(Top 36%)3011(Top 24%)3011(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21
+97ft-345ft

Overall

7473

Females

953

F18-39

953

5K→10K

3.1 - 6.2 mi

Top 27%
×5
+79ft-138ft

Overall

7840

Females

1034

F18-39

1034

10K→15K

6.2 - 9.3 mi

Top 26%
×3
+67ft-78ft

Overall

7473

Females

953

F18-39

953

15K→20K

9.3 - 12.4 mi

Top 25%
×5
+106ft-86ft

Overall

7285

Females

906

F18-39

906

20K→HALF

12.4 - 13.1 mi

Top 26%
×2
+19ft-37ft

Overall

7597

Females

1000

F18-39

1000

HALF→25K

13.1 - 15.5 mi

Top 26%
×4
+66ft-88ft

Overall

7549

Females

1051

F18-39

1051

25K→30K

15.5 - 18.6 mi

Top 27%
×9
+181ft-148ft

Overall

7939

Females

1336

F18-39

1336

30K→20M

18.6 - 20.0 mi

Top 34%
×5
+64ft-50ft

Overall

9901

Females

2331

F18-39

2331

20M→21M

20.0 - 21.0 mi

Top 39%
×8
+106ft-24ft

Overall

11194

Females

3070

F18-39

3070

21M→35K

21.0 - 21.8 mi

Top 36%
×7
+17ft-86ft

Overall

10559

Females

2756

F18-39

2756

35K→23M

21.8 - 23.0 mi

Top 37%
×5
+23ft-63ft

Overall

10676

Females

2935

F18-39

2935

23M→24M

23.0 - 24.0 mi

Top 37%
×6
+12ft-82ft

Overall

10619

Females

2961

F18-39

2961

24M→40K

24.0 - 24.9 mi

Top 42%
×1
+6ft-20ft

Overall

12324

Females

3937

F18-39

3937

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1
+13ft-16ft

Overall

11034

Females

3325

F18-39

3325

25.2M→FINISH

25.2 - 26.2 mi

Top 36%
×2
+22ft-21ft

Overall

10359

Females

3011

F18-39

3011

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1146
Passed By
1691
Net Change
-678
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7471
5K → 10K148200-185#7471#7656
10K → 15K17584+91#7656#7565
15K → 20K18683+103#7565#7462
20K → HALF3534+1#7462#7461
HALF → 25K131104+27#7461#7434
25K → 30K125154-29#7434#7463
30K → 20M49160-111#7463#7574
20M → 21M33165-132#7574#7706
21M → 35K33103-70#7706#7776
35K → 23M64160-96#7776#7872
23M → 24M36121-85#7872#7957
24M → 40K49156-107#7957#8064
40K → 25.2M2556-31#8064#8095
25.2M → FINISH57111-54#8095#8149
TOTALS11461691-678
📊

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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