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BOSTON MARATHON 2026

Bethany Tom

Bib: 17848•F

CA

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0:00
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 40%
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
24:39
3.11 mi
Rank: #16445
Start → 5K
24:39 | 7:57/mi
10K
49:18
6.21 mi
Rank: #16598 (-153)
5K → 10K
24:39 | 7:57/mi
15K
1:13:52
9.32 mi
Rank: #16484 (+114)
10K → 15K
24:34 | 7:55/mi
20K
1:38:35
12.43 mi
Rank: #16283 (+201)
15K → 20K
24:43 | 7:58/mi
HALF
1:44:02
13.11 mi
Rank: #16322 (-39)
20K → HALF
5:27 | 8:00/mi
25K
2:03:24
15.53 mi
Rank: #16159 (+163)
HALF → 25K
19:22 | 8:00/mi
30K
2:29:05
18.64 mi
Rank: #15974 (+185)
25K → 30K
25:41 | 8:16/mi
20M
2:40:14
20.00 mi
Rank: #15837 (+137)
30K → 20M
11:09 | 8:13/mi
21M
2:48:55
21.00 mi
Rank: #15716 (+121)
20M → 21M
8:41 | 8:41/mi
35K
2:54:54
21.75 mi
Rank: #15635 (+81)
21M → 35K
5:59 | 8:00/mi
23M
3:05:08
23.00 mi
Rank: #15502 (+133)
35K → 23M
10:14 | 8:11/mi
24M
3:12:59
24.00 mi
Rank: #15384 (+118)
23M → 24M
7:51 | 7:51/mi
40K
3:19:48
24.85 mi
Rank: #15251 (+133)
24M → 40K
6:49 | 7:59/mi
25.2M
3:22:48
25.20 mi
Rank: #15197 (+54)
40K → 25.2M
3:00 | 8:42/mi
FINISH
3:30:29
26.22 mi
Rank: #15050 (+147)
25.2M → FINISH
7:41 | 7:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:44:02
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:46:27
Pace8:08 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:0924:397:5724:39
7:57
-
10K
6.21 mi11:31:4849:187:5724:39
7:57
0:00
15K
9.32 mi11:56:221:13:527:5624:34
7:55
-0:02
20K
12.43 mi12:21:051:38:357:5624:43
7:58
+0:03
HALF
13.11 mi12:26:311:44:027:575:27
8:00
+0:02
25K
15.53 mi12:45:542:03:247:5719:22
8:00
0:00
30K
18.64 mi13:11:352:29:058:0025:41
8:16
+0:16
20M
20.00 mi13:22:442:40:148:0111:09
8:13
-0:03
21M
21.00 mi13:31:252:48:558:038:41
8:41
+0:28
35K
21.75 mi13:37:242:54:548:035:59
8:00
-0:41
23M
23.00 mi13:47:383:05:088:0310:14
8:11
+0:11
24M
24.00 mi13:55:293:12:598:037:51
7:51
-0:20
40K
24.85 mi14:02:183:19:488:036:49
7:59
+0:08
25.2M
25.20 mi14:05:183:22:488:033:00
8:42
+0:43
FINISH
26.22 mi14:12:593:30:298:037:41
7:33
-1:09

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

7:33 /mi

Average Pace

8:02 /mi

Slowest Pace

8:42 /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

3:18:48

94% of race

Time at Steady Pace

11:41

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:02 /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 mi11:07:0924:397:5724:39
7:57
#16445
10K
6.21 mi11:31:4849:187:5724:39
7:57
#16598
15K
9.32 mi11:56:221:13:527:5624:34
7:55
#16484
20K
12.43 mi12:21:051:38:357:5624:43
7:58
#16283
HALF
13.11 mi12:26:311:44:027:575:27
8:00
#16322
25K
15.53 mi12:45:542:03:247:5719:22
8:00
#16159
30K
18.64 mi13:11:352:29:058:0025:41
8:16
#15974
20M
20.00 mi13:22:442:40:148:0111:09
8:13
#15837
21M
21.00 mi13:31:252:48:558:038:41
8:41
#15716
35K
21.75 mi13:37:242:54:548:035:59
8:00
#15635
23M
23.00 mi13:47:383:05:088:0310:14
8:11
#15502
24M
24.00 mi13:55:293:12:598:037:51
7:51
#15384
40K
24.85 mi14:02:183:19:488:036:49
7:59
#15251
25.2M
25.20 mi14:05:183:22:488:033:00
8:42
#15197
FINISH
26.22 mi14:12:593:30:298:037:41
7:33
#15050
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

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 mi164455586558616271(Top 56%)5485(Top 44%)5485(Top 96%)
10K6.21 mi3.10 mi16598-1535696-1105696-11016747(Top 58%)5762(Top 46%)5762(Top 101%)
15K9.32 mi3.11 mi16484+1145624+725624+7216271(Top 56%)5485(Top 44%)5485(Top 96%)
20K12.43 mi3.11 mi16283+2015522+1025522+10215798(Top 54%)5265(Top 42%)5265(Top 92%)
HALF13.11 mi0.68 mi16322-395548-265548-2617005(Top 59%)5944(Top 47%)5944(Top 104%)
25K15.53 mi2.42 mi16159+1635459+895459+8915315(Top 53%)5040(Top 40%)5040(Top 88%)
30K18.64 mi3.11 mi15974+1855388+715388+7115398(Top 53%)5192(Top 41%)5192(Top 91%)
20M20.00 mi1.36 mi15837+1375321+675321+6714350(Top 49%)4682(Top 37%)4682(Top 82%)
21M21.00 mi1.00 mi15716+1215271+505271+5014314(Top 49%)4750(Top 38%)4750(Top 83%)
35K21.75 mi0.75 mi15635+815239+325239+3214519(Top 50%)4923(Top 39%)4923(Top 86%)
23M23.00 mi1.25 mi15502+1335190+495190+4913670(Top 47%)4541(Top 36%)4541(Top 79%)
24M24.00 mi1.00 mi15384+1185140+505140+5012719(Top 44%)4106(Top 33%)4106(Top 72%)
40K24.85 mi0.85 mi15251+1335082+585082+5812370(Top 43%)3983(Top 32%)3983(Top 70%)
25.2M25.20 mi0.35 mi15197+545053+295053+2912975(Top 45%)4363(Top 35%)4363(Top 76%)
FINISH26.22 mi1.02 mi15050+1474979+744979+7411805(Top 41%)3774(Top 30%)3774(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21
+97ft-345ft

Overall

16271

Females

5485

F18-39

5485

5K→10K

3.1 - 6.2 mi

Top 58%
×5
+79ft-138ft

Overall

16747

Females

5762

F18-39

5762

10K→15K

6.2 - 9.3 mi

Top 56%
×3
+67ft-78ft

Overall

16271

Females

5485

F18-39

5485

15K→20K

9.3 - 12.4 mi

Top 54%
×5
+106ft-86ft

Overall

15798

Females

5265

F18-39

5265

20K→HALF

12.4 - 13.1 mi

Top 59%
×2
+19ft-37ft

Overall

17005

Females

5944

F18-39

5944

HALF→25K

13.1 - 15.5 mi

Top 53%
×4
+66ft-88ft

Overall

15315

Females

5040

F18-39

5040

25K→30K

15.5 - 18.6 mi

Top 53%
×9
+181ft-148ft

Overall

15398

Females

5192

F18-39

5192

30K→20M

18.6 - 20.0 mi

Top 49%
×5
+64ft-50ft

Overall

14350

Females

4682

F18-39

4682

20M→21M

20.0 - 21.0 mi

Top 49%
×8
+106ft-24ft

Overall

14314

Females

4750

F18-39

4750

21M→35K

21.0 - 21.8 mi

Top 50%
×7
+17ft-86ft

Overall

14519

Females

4923

F18-39

4923

35K→23M

21.8 - 23.0 mi

Top 47%
×5
+23ft-63ft

Overall

13670

Females

4541

F18-39

4541

23M→24M

23.0 - 24.0 mi

Top 44%
×6
+12ft-82ft

Overall

12719

Females

4106

F18-39

4106

24M→40K

24.0 - 24.9 mi

Top 43%
×1
+6ft-20ft

Overall

12370

Females

3983

F18-39

3983

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1
+13ft-16ft

Overall

12975

Females

4363

F18-39

4363

25.2M→FINISH

25.2 - 26.2 mi

Top 41%
×2
+22ft-21ft

Overall

11805

Females

3774

F18-39

3774

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2352*
Passed By
804
Net Change
+1395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16445
5K → 10K200200-153#16445#16598
10K → 15K251*137+114#16598#16484
15K → 20K290*89+201#16484#16283
20K → HALF2261-39#16283#16322
HALF → 25K221*58+163#16322#16159
25K → 30K273*88+185#16159#15974
30K → 20M16730+137#15974#15837
20M → 21M16241+121#15837#15716
21M → 35K10322+81#15716#15635
35K → 23M16633+133#15635#15502
23M → 24M13012+118#15502#15384
24M → 40K14714+133#15384#15251
40K → 25.2M617+54#15251#15197
25.2M → FINISH15912+147#15197#15050
TOTALS2352*804+1395

* 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