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BOSTON MARATHON 2026

Shelby Osmond

Bib: 14440•F

UT

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 32%
Gender (Female)
#0 / 12578
Top 16%
Age Group (F18-39)
#0 / 5716
Top 28%
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
22:30
3.11 mi
Rank: #10566
Start → 5K
22:30 | 7:15/mi
10K
45:10
6.21 mi
Rank: #10817 (-251)
5K → 10K
22:40 | 7:18/mi
15K
1:07:29
9.32 mi
Rank: #10523 (+294)
10K → 15K
22:19 | 7:11/mi
20K
1:29:56
12.43 mi
Rank: #10230 (+293)
15K → 20K
22:27 | 7:14/mi
HALF
1:34:45
13.11 mi
Rank: #10155 (+75)
20K → HALF
4:49 | 7:04/mi
25K
1:52:05
15.53 mi
Rank: #9860 (+295)
HALF → 25K
17:20 | 7:09/mi
30K
2:15:25
18.64 mi
Rank: #9770 (+90)
25K → 30K
23:20 | 7:31/mi
20M
2:25:51
20.00 mi
Rank: #9774 (-4)
30K → 20M
10:26 | 7:41/mi
21M
2:33:49
21.00 mi
Rank: #9741 (+33)
20M → 21M
7:58 | 7:58/mi
35K
2:39:09
21.75 mi
Rank: #9639 (+102)
21M → 35K
5:20 | 7:08/mi
23M
2:48:29
23.00 mi
Rank: #9493 (+146)
35K → 23M
9:20 | 7:28/mi
24M
2:56:08
24.00 mi
Rank: #9546 (-53)
23M → 24M
7:39 | 7:39/mi
40K
3:02:49
24.85 mi
Rank: #9603 (-57)
24M → 40K
6:41 | 7:50/mi
25.2M
3:05:41
25.20 mi
Rank: #9592 (+11)
40K → 25.2M
2:52 | 8:19/mi
FINISH
3:12:41
26.22 mi
Rank: #9420 (+172)
25.2M → FINISH
7:00 | 6:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:34:45
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:37:56
Pace7:29 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3122:307:1522:30
7:15
-
10K
6.21 mi11:15:1145:107:1722:40
7:18
+0:03
15K
9.32 mi11:37:301:07:297:1522:19
7:11
-0:07
20K
12.43 mi11:59:571:29:567:1522:27
7:14
+0:03
HALF
13.11 mi12:04:461:34:457:144:49
7:04
-0:10
25K
15.53 mi12:22:061:52:057:1317:20
7:09
+0:05
30K
18.64 mi12:45:262:15:257:1623:20
7:31
+0:22
20M
20.00 mi12:55:522:25:517:1810:26
7:41
+0:10
21M
21.00 mi13:03:502:33:497:207:58
7:58
+0:17
35K
21.75 mi13:09:102:39:097:205:20
7:08
-0:50
23M
23.00 mi13:18:302:48:297:209:20
7:28
+0:20
24M
24.00 mi13:26:092:56:087:217:39
7:39
+0:11
40K
24.85 mi13:32:503:02:497:226:41
7:50
+0:11
25.2M
25.20 mi13:35:423:05:417:232:52
8:19
+0:29
FINISH
26.22 mi13:42:423:12:417:227:00
6:53
-1:26

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

6:53 /mi

Average Pace

7:21 /mi

Slowest Pace

8:19 /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

11:49

6% of race

Time at Steady Pace

2:01:56

63% of race

Time at Slower Pace

58:56

31% of race

Average Pace: 7:21 /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 mi10:52:3122:307:1522:30
7:15
#10566
10K
6.21 mi11:15:1145:107:1722:40
7:18
#10817
15K
9.32 mi11:37:301:07:297:1522:19
7:11
#10523
20K
12.43 mi11:59:571:29:567:1522:27
7:14
#10230
HALF
13.11 mi12:04:461:34:457:144:49
7:04
#10155
25K
15.53 mi12:22:061:52:057:1317:20
7:09
#9860
30K
18.64 mi12:45:262:15:257:1623:20
7:31
#9770
20M
20.00 mi12:55:522:25:517:1810:26
7:41
#9774
21M
21.00 mi13:03:502:33:497:207:58
7:58
#9741
35K
21.75 mi13:09:102:39:097:205:20
7:08
#9639
23M
23.00 mi13:18:302:48:297:209:20
7:28
#9493
24M
24.00 mi13:26:092:56:087:217:39
7:39
#9546
40K
24.85 mi13:32:503:02:497:226:41
7:50
#9603
25.2M
25.20 mi13:35:423:05:417:232:52
8:19
#9592
FINISH
26.22 mi13:42:423:12:417:227:00
6:53
#9420
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 mi10566216921699996(Top 34%)1947(Top 15%)1947(Top 34%)
10K6.21 mi3.10 mi10817-2512305-1362305-13611118(Top 38%)2491(Top 20%)2491(Top 44%)
15K9.32 mi3.11 mi10523+2942174+1312174+1319996(Top 34%)1947(Top 15%)1947(Top 34%)
20K12.43 mi3.11 mi10230+2932063+1112063+1119566(Top 33%)1836(Top 15%)1836(Top 32%)
HALF13.11 mi0.68 mi10155+752033+302033+309246(Top 32%)1627(Top 13%)1627(Top 28%)
25K15.53 mi2.42 mi9860+2951902+1311902+1318495(Top 29%)1448(Top 12%)1448(Top 25%)
30K18.64 mi3.11 mi9770+901921-191921-199750(Top 34%)2157(Top 17%)2157(Top 38%)
20M20.00 mi1.36 mi9774-41956-351956-3510471(Top 36%)2620(Top 21%)2620(Top 46%)
21M21.00 mi1.00 mi9741+33195619569681(Top 33%)2337(Top 19%)2337(Top 41%)
35K21.75 mi0.75 mi9639+1021925+311925+318107(Top 28%)1612(Top 13%)1612(Top 28%)
23M23.00 mi1.25 mi9493+1461891+341891+348579(Top 30%)1913(Top 15%)1913(Top 33%)
24M24.00 mi1.00 mi9546-531929-381929-3811209(Top 39%)3273(Top 26%)3273(Top 57%)
40K24.85 mi0.85 mi9603-571981-521981-5211182(Top 39%)3337(Top 27%)3337(Top 58%)
25.2M25.20 mi0.35 mi9592+111996-151996-1510438(Top 36%)3018(Top 24%)3018(Top 53%)
FINISH26.22 mi1.02 mi9420+1721950+461950+466630(Top 23%)1339(Top 11%)1339(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21
+97ft-345ft

Overall

9996

Females

1947

F18-39

1947

5K→10K

3.1 - 6.2 mi

Top 38%
×5
+79ft-138ft

Overall

11118

Females

2491

F18-39

2491

10K→15K

6.2 - 9.3 mi

Top 34%
×3
+67ft-78ft

Overall

9996

Females

1947

F18-39

1947

15K→20K

9.3 - 12.4 mi

Top 33%
×5
+106ft-86ft

Overall

9566

Females

1836

F18-39

1836

20K→HALF

12.4 - 13.1 mi

Top 32%
×2
+19ft-37ft

Overall

9246

Females

1627

F18-39

1627

HALF→25K

13.1 - 15.5 mi

Top 29%
×4
+66ft-88ft

Overall

8495

Females

1448

F18-39

1448

25K→30K

15.5 - 18.6 mi

Top 34%
×9
+181ft-148ft

Overall

9750

Females

2157

F18-39

2157

30K→20M

18.6 - 20.0 mi

Top 36%
×5
+64ft-50ft

Overall

10471

Females

2620

F18-39

2620

20M→21M

20.0 - 21.0 mi

Top 33%
×8
+106ft-24ft

Overall

9681

Females

2337

F18-39

2337

21M→35K

21.0 - 21.8 mi

Top 28%
×7
+17ft-86ft

Overall

8107

Females

1612

F18-39

1612

35K→23M

21.8 - 23.0 mi

Top 30%
×5
+23ft-63ft

Overall

8579

Females

1913

F18-39

1913

23M→24M

23.0 - 24.0 mi

Top 39%
×6
+12ft-82ft

Overall

11209

Females

3273

F18-39

3273

24M→40K

24.0 - 24.9 mi

Top 39%
×1
+6ft-20ft

Overall

11182

Females

3337

F18-39

3337

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1
+13ft-16ft

Overall

10438

Females

3018

F18-39

3018

25.2M→FINISH

25.2 - 26.2 mi

Top 23%
×2
+22ft-21ft

Overall

6630

Females

1339

F18-39

1339

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2202*
Passed By
873
Net Change
+1146
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10566
5K → 10K132200-251#10566#10817
10K → 15K335*41+294#10817#10523
15K → 20K338*45+293#10523#10230
20K → HALF761+75#10230#10155
HALF → 25K301*6+295#10155#9860
25K → 30K219*129+90#9860#9770
30K → 20M8892-4#9770#9774
20M → 21M9259+33#9774#9741
21M → 35K1097+102#9741#9639
35K → 23M17024+146#9639#9493
23M → 24M64117-53#9493#9546
24M → 40K52109-57#9546#9603
40K → 25.2M3928+11#9603#9592
25.2M → FINISH18715+172#9592#9420
TOTALS2202*873+1146

* 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

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing