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BOSTON MARATHON 2026

Hannah O'Brien

Bib: 15138•F

SC

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 23%
Gender (Female)
#0 / 12578
Top 6%
Age Group (F18-39)
#0 / 5716
Top 12%
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
22:21
3.11 mi
Rank: #10108
Start → 5K
22:21 | 7:12/mi
10K
44:29
6.21 mi
Rank: #9845 (+263)
5K → 10K
22:08 | 7:08/mi
15K
1:06:06
9.32 mi
Rank: #9220 (+625)
10K → 15K
21:37 | 6:58/mi
20K
1:27:39
12.43 mi
Rank: #8752 (+468)
15K → 20K
21:33 | 6:57/mi
HALF
1:32:19
13.11 mi
Rank: #8675 (+77)
20K → HALF
4:40 | 6:51/mi
25K
1:49:05
15.53 mi
Rank: #8350 (+325)
HALF → 25K
16:46 | 6:55/mi
30K
2:10:46
18.64 mi
Rank: #7820 (+530)
25K → 30K
21:41 | 6:59/mi
20M
2:20:17
20.00 mi
Rank: #7609 (+211)
30K → 20M
9:31 | 7:01/mi
21M
2:27:32
21.00 mi
Rank: #7418 (+191)
20M → 21M
7:15 | 7:15/mi
35K
2:32:28
21.75 mi
Rank: #7275 (+143)
21M → 35K
4:56 | 6:36/mi
23M
2:41:04
23.00 mi
Rank: #7041 (+234)
35K → 23M
8:36 | 6:53/mi
24M
2:47:51
24.00 mi
Rank: #6902 (+139)
23M → 24M
6:47 | 6:47/mi
40K
2:53:37
24.85 mi
Rank: #6742 (+160)
24M → 40K
5:46 | 6:45/mi
25.2M
2:56:12
25.20 mi
Rank: #6687 (+55)
40K → 25.2M
2:35 | 7:30/mi
FINISH
3:03:00
26.22 mi
Rank: #6586 (+101)
25.2M → FINISH
6:48 | 6:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:32:19
Pace7:03 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:30:41
Pace6:56 /mi
📊Negative Split: 1.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5222:217:1222:21
7:12
-
10K
6.21 mi11:16:0044:297:1022:08
7:08
-0:04
15K
9.32 mi11:37:371:06:067:0621:37
6:58
-0:10
20K
12.43 mi11:59:101:27:397:0421:33
6:57
-0:01
HALF
13.11 mi12:03:501:32:197:034:40
6:51
-0:06
25K
15.53 mi12:20:361:49:057:0216:46
6:55
+0:04
30K
18.64 mi12:42:172:10:467:0121:41
6:59
+0:04
20M
20.00 mi12:51:482:20:177:019:31
7:01
+0:02
21M
21.00 mi12:59:032:27:327:027:15
7:15
+0:14
35K
21.75 mi13:03:592:32:287:014:56
6:36
-0:39
23M
23.00 mi13:12:352:41:047:018:36
6:53
+0:17
24M
24.00 mi13:19:222:47:517:006:47
6:47
-0:06
40K
24.85 mi13:25:082:53:377:005:46
6:45
-0:02
25.2M
25.20 mi13:27:432:56:127:002:35
7:30
+0:45
FINISH
26.22 mi13:34:313:03:007:006:48
6:41
-0:49

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

6:36 /mi

Average Pace

6:59 /mi

Slowest Pace

7:30 /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

3:00:25

99% of race

Time at Steady Pace

2:35

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:59 /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 mi10:53:5222:217:1222:21
7:12
#10108
10K
6.21 mi11:16:0044:297:1022:08
7:08
#9845
15K
9.32 mi11:37:371:06:067:0621:37
6:58
#9220
20K
12.43 mi11:59:101:27:397:0421:33
6:57
#8752
HALF
13.11 mi12:03:501:32:197:034:40
6:51
#8675
25K
15.53 mi12:20:361:49:057:0216:46
6:55
#8350
30K
18.64 mi12:42:172:10:467:0121:41
6:59
#7820
20M
20.00 mi12:51:482:20:177:019:31
7:01
#7609
21M
21.00 mi12:59:032:27:327:027:15
7:15
#7418
35K
21.75 mi13:03:592:32:287:014:56
6:36
#7275
23M
23.00 mi13:12:352:41:047:018:36
6:53
#7041
24M
24.00 mi13:19:222:47:517:006:47
6:47
#6902
40K
24.85 mi13:25:082:53:377:005:46
6:45
#6742
25.2M
25.20 mi13:27:432:56:127:002:35
7:30
#6687
FINISH
26.22 mi13:34:313:03:007:006:48
6:41
#6586
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 mi10108192719278279(Top 29%)1209(Top 10%)1209(Top 21%)
10K6.21 mi3.10 mi9845+2631810+1171810+1179579(Top 33%)1696(Top 13%)1696(Top 30%)
15K9.32 mi3.11 mi9220+6251544+2661544+2668279(Top 29%)1209(Top 10%)1209(Top 21%)
20K12.43 mi3.11 mi8752+4681380+1641380+1647411(Top 26%)947(Top 8%)947(Top 17%)
HALF13.11 mi0.68 mi8675+771358+221358+227562(Top 26%)965(Top 8%)965(Top 17%)
25K15.53 mi2.42 mi8350+3251253+1051253+1056828(Top 24%)823(Top 7%)823(Top 14%)
30K18.64 mi3.11 mi7820+5301084+1691084+1695757(Top 20%)625(Top 5%)625(Top 11%)
20M20.00 mi1.36 mi7609+2111023+611023+615620(Top 19%)641(Top 5%)641(Top 11%)
21M21.00 mi1.00 mi7418+191975+48975+484990(Top 17%)596(Top 5%)596(Top 10%)
35K21.75 mi0.75 mi7275+143948+27948+274273(Top 15%)426(Top 3%)426(Top 7%)
23M23.00 mi1.25 mi7041+234896+52896+524600(Top 16%)514(Top 4%)514(Top 9%)
24M24.00 mi1.00 mi6902+139866+30866+305039(Top 17%)661(Top 5%)661(Top 12%)
40K24.85 mi0.85 mi6742+160830+36830+363927(Top 14%)457(Top 4%)457(Top 8%)
25.2M25.20 mi0.35 mi6687+55820+10820+105284(Top 18%)838(Top 7%)838(Top 15%)
FINISH26.22 mi1.02 mi6586+101808+12808+125296(Top 18%)881(Top 7%)881(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21
+97ft-345ft

Overall

8279

Females

1209

F18-39

1209

5K→10K

3.1 - 6.2 mi

Top 33%
×5
+79ft-138ft

Overall

9579

Females

1696

F18-39

1696

10K→15K

6.2 - 9.3 mi

Top 29%
×3
+67ft-78ft

Overall

8279

Females

1209

F18-39

1209

15K→20K

9.3 - 12.4 mi

Top 26%
×5
+106ft-86ft

Overall

7411

Females

947

F18-39

947

20K→HALF

12.4 - 13.1 mi

Top 26%
×2
+19ft-37ft

Overall

7562

Females

965

F18-39

965

HALF→25K

13.1 - 15.5 mi

Top 24%
×4
+66ft-88ft

Overall

6828

Females

823

F18-39

823

25K→30K

15.5 - 18.6 mi

Top 20%
×9
+181ft-148ft

Overall

5757

Females

625

F18-39

625

30K→20M

18.6 - 20.0 mi

Top 19%
×5
+64ft-50ft

Overall

5620

Females

641

F18-39

641

20M→21M

20.0 - 21.0 mi

Top 17%
×8
+106ft-24ft

Overall

4990

Females

596

F18-39

596

21M→35K

21.0 - 21.8 mi

Top 15%
×7
+17ft-86ft

Overall

4273

Females

426

F18-39

426

35K→23M

21.8 - 23.0 mi

Top 16%
×5
+23ft-63ft

Overall

4600

Females

514

F18-39

514

23M→24M

23.0 - 24.0 mi

Top 17%
×6
+12ft-82ft

Overall

5039

Females

661

F18-39

661

24M→40K

24.0 - 24.9 mi

Top 14%
×1
+6ft-20ft

Overall

3927

Females

457

F18-39

457

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1
+13ft-16ft

Overall

5284

Females

838

F18-39

838

25.2M→FINISH

25.2 - 26.2 mi

Top 18%
×2
+22ft-21ft

Overall

5296

Females

881

F18-39

881

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3718*
Passed By
196
Net Change
+3522
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10108
5K → 10K402*139+263#10108#9845
10K → 15K635*10+625#9845#9220
15K → 20K4735+468#9220#8752
20K → HALF814+77#8752#8675
HALF → 25K3294+325#8675#8350
25K → 30K5344+530#8350#7820
30K → 20M2121+211#7820#7609
20M → 21M1954+191#7609#7418
21M → 35K1441+143#7418#7275
35K → 23M2395+234#7275#7041
23M → 24M1456+139#7041#6902
24M → 40K1644+160#6902#6742
40K → 25.2M561+55#6742#6687
25.2M → FINISH1098+101#6687#6586
TOTALS3718*196+3522

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

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📊

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