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BOSTON MARATHON 2025

Jessica Li

ON

Bib: 15226 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Division (F18-39)
#0 / 5469
Top 27%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:30/mi
23:19
↑ 97↓ 345
10K· 6.21 mi
7:34/mi
46:48
↑ 79↓ 138
15K· 9.32 mi
7:32/mi
1:10:12
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:33:41
↑ 106↓ 86
Half· 13.11 mi
7:30/mi
1:38:48
↑ 19↓ 37
25K· 15.53 mi
7:29/mi
1:56:56
↑ 66↓ 88
30K· 18.64 mi
7:46/mi
2:21:03
↑ 181↓ 148
20M
7:44/mi
2:31:34
↑ 64↓ 50
21M
8:00/mi
2:39:34
↑ 106↓ 24
35K· 21.75 mi
7:10/mi
2:44:56
↑ 17↓ 86
23M
7:21/mi
2:54:08
↑ 23↓ 63
24M
6:57/mi
3:01:05
↓ 82
40K· 24.85 mi
7:10/mi
3:07:13
↓ 20
25.2M
7:47/mi
3:09:54
↑ 13↓ 16
Finish· 26.22 mi
6:46/mi
3:16:48
↑ 22↓ 21
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:38:487:32 /mi⚖️ balanced
2nd Half
1:38:007:29 /mi⚖️ balanced
Even split — consistent pacing between halves
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
23:197:303.11 mi23:19
7:30
-
10K
46:487:323.10 mi23:29
7:34
+0:04
15K
1:10:127:323.11 mi23:24
7:32
-0:02
20K
1:33:417:323.11 mi23:29
7:34
+0:02
Half(13.11 mi)
1:38:487:320.68 mi5:07
7:30
-0:04
25K
1:56:567:322.42 mi18:08
7:29
-0:01
30K
2:21:037:343.11 mi24:07
7:46
+0:17
20M
2:31:347:351.36 mi10:31
7:44
-0:02
21M
2:39:347:361.00 mi8:00
8:00
+0:16
35K
2:44:567:350.75 mi5:22
7:10
-0:50
23M
2:54:087:341.25 mi9:12
7:21
+0:11
24M
3:01:057:331.00 mi6:57
6:57
-0:24
40K
3:07:137:320.85 mi6:08
7:10
+0:13
25.2M
3:09:547:320.35 mi2:41
7:47
+0:37
Finish(26.22 mi)
3:16:487:311.02 mi6:54
6:46
-1:01
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:46 /mi

Average Pace

7:31 /mi

Slowest Pace

8:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

34:33

18% of race

Time at Steady Pace

2:34:15

78% of race

Time at Slower Pace

8:00

4% of race

Average Pace: 7:30 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi12299296029601205229282928
10K3.10 mi12419-1203018-583018-581264731653165
15K3.11 mi12255+1642974+442974+441205229282928
20K3.11 mi11983+2722858+1162858+1161123525932593
Half(13.11 mi)0.68 mi11957+262852+62852+61172427632763
25K2.42 mi11566+3912684+1682684+168980720172017
30K3.11 mi11177+3892557+1272557+127964121152115
20M1.36 mi10917+2602463+942463+94865018131813
21M1.00 mi10667+2502376+872376+87737214671467
35K0.75 mi10479+1882297+792297+79649511111111
23M1.25 mi10108+3712155+1422155+1425779934934
24M1.00 mi9765+3432027+1282027+1284404563563
40K0.85 mi9518+2471939+881939+884955769769
25.2M0.35 mi9398+1201905+341905+344883850850
Finish(26.22 mi)1.02 mi9131+2671823+821823+824371664664

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

12052

Females

2928

F18-39

2928

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12647

Females

3165

F18-39

3165

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

12052

Females

2928

F18-39

2928

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11235

Females

2593

F18-39

2593

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11724

Females

2763

F18-39

2763

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9807

Females

2017

F18-39

2017

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9641

Females

2115

F18-39

2115

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8650

Females

1813

F18-39

1813

20M→21M

20.0 - 21.0 mi

Top 26%
×8story building
+106ft-24ft

Overall

7372

Females

1467

F18-39

1467

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6495

Females

1111

F18-39

1111

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5779

Females

934

F18-39

934

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4404

Females

563

F18-39

563

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4955

Females

769

F18-39

769

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4883

Females

850

F18-39

850

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4371

Females

664

F18-39

664

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#12299
5K → 10K
331211-120
#12299 → #12419
10K → 15K
107271+164
#12419 → #12255
15K → 20K
61333+272
#12255 → #11983
20K → Half
2450+26
#11983 → #11957
Half → 25K
15406+391
#11957 → #11566
25K → 30K
54443+389
#11566 → #11177
30K → 20M
10270+260
#11177 → #10917
20M → 21M
7257+250
#10917 → #10667
21M → 35K
1189+188
#10667 → #10479
35K → 23M
2373+371
#10479 → #10108
23M → 24M
0343*+343
#10108 → #9765
24M → 40K
1248+247
#9765 → #9518
40K → 25.2M
0120+120
#9518 → #9398
25.2M → Finish
1268+267
#9398 → #9131
TOTALS
6143782*+3168
#12299 → #9131

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

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing