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BOSTON MARATHON 2025

Jessica Ding

Bib: 16282•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 16%
Division (F18-39)
#0 / 5469
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:42
Rank: #10436
Start → 5K
22:42 | 7:18/mi
10K· 6.21 mi
45:44
Rank: #10872 (-436)
5K → 10K
23:02 | 7:25/mi
15K· 9.32 mi
1:08:30
Rank: #10635 (+237)
10K → 15K
22:46 | 7:20/mi
20K· 12.43 mi
1:31:07
Rank: #10157 (+478)
15K → 20K
22:37 | 7:17/mi
Half· 13.11 mi
1:36:10
Rank: #10189 (-32)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:54:14
Rank: #10034 (+155)
Half → 25K
18:04 | 7:27/mi
30K· 18.64 mi
2:18:36
Rank: #10014 (+20)
25K → 30K
24:22 | 7:51/mi
20M
2:29:39
Rank: #10077 (-63)
30K → 20M
11:03 | 8:08/mi
21M
2:38:06
Rank: #10077
20M → 21M
8:27 | 8:27/mi
35K· 21.75 mi
2:43:45
Rank: #9998 (+79)
21M → 35K
5:39 | 7:33/mi
23M
2:53:33
Rank: #9906 (+92)
35K → 23M
9:48 | 7:50/mi
24M
3:01:08
Rank: #9789 (+117)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:07:41
Rank: #9668 (+121)
24M → 40K
6:33 | 7:40/mi
25.2M
3:10:31
Rank: #9607 (+61)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:18:02
Rank: #9532 (+75)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:10
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:41:52
Pace7:46 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:4022:427:1822:42
7:18
-
10K
6.21 mi11:19:4245:447:2223:02
7:25
+0:07
15K
9.32 mi11:42:281:08:307:2122:46
7:20
-0:05
20K
12.43 mi12:05:051:31:077:2022:37
7:17
-0:03
Half
13.11 mi12:10:081:36:107:205:03
7:24
+0:07
25K
15.53 mi12:28:121:54:147:2118:04
7:27
+0:03
30K
18.64 mi12:52:342:18:367:2624:22
7:51
+0:24
20M
20.00 mi13:03:372:29:397:2911:03
8:08
+0:17
21M
21.00 mi13:12:042:38:067:328:27
8:27
+0:19
35K
21.75 mi13:17:432:43:457:325:39
7:33
-0:54
23M
23.00 mi13:27:312:53:337:339:48
7:50
+0:17
24M
24.00 mi13:35:063:01:087:337:35
7:35
-0:15
40K
24.85 mi13:41:393:07:417:336:33
7:40
+0:05
25.2M
25.20 mi13:44:293:10:317:342:50
8:13
+0:33
Finish
26.22 mi13:52:003:18:027:347:31
7:23
-0:50

Checkpoints & Pacing

📈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

7:17 /mi

Average Pace

7:34 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:42

89% of race

Time at Steady Pace

22:20

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:56:4022:427:1822:42
7:18
#10436
10K
6.21 mi11:19:4245:447:2223:02
7:25
#10872
15K
9.32 mi11:42:281:08:307:2122:46
7:20
#10635
20K
12.43 mi12:05:051:31:077:2022:37
7:17
#10157
Half
13.11 mi12:10:081:36:107:205:03
7:24
#10189
25K
15.53 mi12:28:121:54:147:2118:04
7:27
#10034
30K
18.64 mi12:52:342:18:367:2624:22
7:51
#10014
20M
20.00 mi13:03:372:29:397:2911:03
8:08
#10077
21M
21.00 mi13:12:042:38:067:328:27
8:27
#10077
35K
21.75 mi13:17:432:43:457:325:39
7:33
#9998
23M
23.00 mi13:27:312:53:337:339:48
7:50
#9906
24M
24.00 mi13:35:063:01:087:337:35
7:35
#9789
40K
24.85 mi13:41:393:07:417:336:33
7:40
#9668
25.2M
25.20 mi13:44:293:10:317:342:50
8:13
#9607
Finish
26.22 mi13:52:003:18:027:347:31
7:23
#9532
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi104362007200710228(Top 36%)1990(Top 16%)1990(Top 36%)
10K6.21 mi3.10 mi10872-4362242-2352242-23511318(Top 40%)2469(Top 20%)2469(Top 45%)
15K9.32 mi3.11 mi10635+2372148+942148+9410228(Top 36%)1990(Top 16%)1990(Top 36%)
20K12.43 mi3.11 mi10157+4781939+2091939+2098897(Top 31%)1481(Top 12%)1481(Top 27%)
Half13.11 mi0.68 mi10189-321962-231962-2310937(Top 39%)2379(Top 19%)2379(Top 43%)
25K15.53 mi2.42 mi10034+1551924+381924+389566(Top 34%)1908(Top 16%)1908(Top 35%)
30K18.64 mi3.11 mi10014+201958-341958-3410245(Top 36%)2404(Top 20%)2404(Top 44%)
20M20.00 mi1.36 mi10077-632023-652023-6511343(Top 40%)3097(Top 25%)3097(Top 57%)
21M21.00 mi1.00 mi100772074-512074-5110169(Top 36%)2684(Top 22%)2684(Top 49%)
35K21.75 mi0.75 mi9998+792066+82066+89045(Top 32%)2139(Top 17%)2139(Top 39%)
23M23.00 mi1.25 mi9906+922067-12067-18797(Top 31%)2166(Top 18%)2166(Top 40%)
24M24.00 mi1.00 mi9789+1172040+272040+278330(Top 29%)2022(Top 17%)2022(Top 37%)
40K24.85 mi0.85 mi9668+1212012+282012+287864(Top 28%)1929(Top 16%)1929(Top 35%)
25.2M25.20 mi0.35 mi9607+612007+52007+57242(Top 25%)1758(Top 14%)1758(Top 32%)
Finish26.22 mi1.02 mi9532+752012-52012-58350(Top 29%)2212(Top 18%)2212(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

10228

Females

1990

F18-39

1990

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

11318

Females

2469

F18-39

2469

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

10228

Females

1990

F18-39

1990

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8897

Females

1481

F18-39

1481

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10937

Females

2379

F18-39

2379

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9566

Females

1908

F18-39

1908

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10245

Females

2404

F18-39

2404

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

11343

Females

3097

F18-39

3097

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

10169

Females

2684

F18-39

2684

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

9045

Females

2139

F18-39

2139

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8797

Females

2166

F18-39

2166

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8330

Females

2022

F18-39

2022

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7864

Females

1929

F18-39

1929

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7242

Females

1758

F18-39

1758

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8350

Females

2212

F18-39

2212

Passing Analysis

Category:
Athletes Passed
2296*
Passed By
1389
Net Change
+904
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10436
5K → 10K114550-436#10436#10872
10K → 15K29356+237#10872#10635
15K → 20K48810+478#10635#10157
20K → Half1446-32#10157#10189
Half → 25K220*65+155#10189#10034
25K → 30K242222+20#10034#10014
30K → 20M104166-63#10014#10077
20M → 21M1091080#10077#10077
21M → 35K10627+79#10077#9998
35K → 23M14653+92#9998#9906
23M → 24M14225+117#9906#9789
24M → 40K13413+121#9789#9668
40K → 25.2M7211+61#9668#9607
25.2M → Finish11237+75#9607#9532
TOTALS2296*1389+904

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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