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BOSTON MARATHON 2025

Jiayi Lin

Bib: 15023•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 21%
Gender (Female)
#0 / 12228
Top 6%
Division (F18-39)
#0 / 5469
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:02
Rank: #8568
Start → 5K
22:02 | 7:06/mi
10K· 6.21 mi
43:42
Rank: #8117 (+451)
5K → 10K
21:40 | 6:58/mi
15K· 9.32 mi
1:05:22
Rank: #7847 (+270)
10K → 15K
21:40 | 6:58/mi
20K· 12.43 mi
1:27:11
Rank: #7593 (+254)
15K → 20K
21:49 | 7:01/mi
Half· 13.11 mi
1:31:51
Rank: #7533 (+60)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:48:50
Rank: #7303 (+230)
Half → 25K
16:59 | 7:00/mi
30K· 18.64 mi
2:11:11
Rank: #6904 (+399)
25K → 30K
22:21 | 7:12/mi
20M
2:21:00
Rank: #6716 (+188)
30K → 20M
9:49 | 7:13/mi
21M
2:28:40
Rank: #6568 (+148)
20M → 21M
7:40 | 7:40/mi
35K· 21.75 mi
2:33:58
Rank: #6504 (+64)
21M → 35K
5:18 | 7:05/mi
23M
2:43:15
Rank: #6392 (+112)
35K → 23M
9:17 | 7:25/mi
24M
2:50:21
Rank: #6308 (+84)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
2:56:31
Rank: #6206 (+102)
24M → 40K
6:10 | 7:13/mi
25.2M
2:59:17
Rank: #6176 (+30)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:06:18
Rank: #6069 (+107)
25.2M → Finish
7:01 | 6:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:51
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:34:27
Pace7:12 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1122:027:0622:02
7:06
-
10K
6.21 mi11:15:5143:427:0221:40
6:58
-0:08
15K
9.32 mi11:37:311:05:227:0121:40
6:58
0:00
20K
12.43 mi11:59:201:27:117:0121:49
7:01
+0:03
Half
13.11 mi12:04:001:31:517:004:40
6:50
-0:11
25K
15.53 mi12:20:591:48:507:0016:59
7:00
+0:10
30K
18.64 mi12:43:202:11:117:0222:21
7:12
+0:12
20M
20.00 mi12:53:092:21:007:039:49
7:13
+0:01
21M
21.00 mi13:00:492:28:407:057:40
7:40
+0:27
35K
21.75 mi13:06:072:33:587:055:18
7:05
-0:35
23M
23.00 mi13:15:242:43:157:069:17
7:25
+0:20
24M
24.00 mi13:22:302:50:217:067:06
7:06
-0:19
40K
24.85 mi13:28:402:56:317:066:10
7:13
+0:07
25.2M
25.20 mi13:31:262:59:177:072:46
8:01
+0:48
Finish
26.22 mi13:38:273:06:187:077:01
6:53
-1:08

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

6:50 /mi

Average Pace

7:07 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:52

94% of race

Time at Steady Pace

10:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:06 /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 mi10:54:1122:027:0622:02
7:06
#8568
10K
6.21 mi11:15:5143:427:0221:40
6:58
#8117
15K
9.32 mi11:37:311:05:227:0121:40
6:58
#7847
20K
12.43 mi11:59:201:27:117:0121:49
7:01
#7593
Half
13.11 mi12:04:001:31:517:004:40
6:50
#7533
25K
15.53 mi12:20:591:48:507:0016:59
7:00
#7303
30K
18.64 mi12:43:202:11:117:0222:21
7:12
#6904
20M
20.00 mi12:53:092:21:007:039:49
7:13
#6716
21M
21.00 mi13:00:492:28:407:057:40
7:40
#6568
35K
21.75 mi13:06:072:33:587:055:18
7:05
#6504
23M
23.00 mi13:15:242:43:157:069:17
7:25
#6392
24M
24.00 mi13:22:302:50:217:067:06
7:06
#6308
40K
24.85 mi13:28:402:56:317:066:10
7:13
#6206
25.2M
25.20 mi13:31:262:59:177:072:46
8:01
#6176
Finish
26.22 mi13:38:273:06:187:077:01
6:53
#6069
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8568118511857467(Top 26%)860(Top 7%)860(Top 16%)
10K6.21 mi3.10 mi8117+4511037+1481037+1487768(Top 27%)924(Top 8%)924(Top 17%)
15K9.32 mi3.11 mi7847+270946+91946+917467(Top 26%)860(Top 7%)860(Top 16%)
20K12.43 mi3.11 mi7593+254883+63883+637021(Top 25%)786(Top 6%)786(Top 14%)
Half13.11 mi0.68 mi7533+60864+19864+196550(Top 23%)671(Top 5%)671(Top 12%)
25K15.53 mi2.42 mi7303+230816+48816+486374(Top 22%)686(Top 6%)686(Top 13%)
30K18.64 mi3.11 mi6904+399753+63753+635880(Top 21%)641(Top 5%)641(Top 12%)
20M20.00 mi1.36 mi6716+188730+23730+235364(Top 19%)604(Top 5%)604(Top 11%)
21M21.00 mi1.00 mi6568+148716+14716+145502(Top 19%)751(Top 6%)751(Top 14%)
35K21.75 mi0.75 mi6504+64710+6710+65928(Top 21%)896(Top 7%)896(Top 16%)
23M23.00 mi1.25 mi6392+112705+5705+56147(Top 22%)1072(Top 9%)1072(Top 20%)
24M24.00 mi1.00 mi6308+84706-1706-15241(Top 18%)803(Top 7%)803(Top 15%)
40K24.85 mi0.85 mi6206+102695+11695+115144(Top 18%)827(Top 7%)827(Top 15%)
25.2M25.20 mi0.35 mi6176+30697-2697-26109(Top 22%)1267(Top 10%)1267(Top 23%)
Finish26.22 mi1.02 mi6069+107690+7690+75015(Top 18%)871(Top 7%)871(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7467

Females

860

F18-39

860

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7768

Females

924

F18-39

924

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7467

Females

860

F18-39

860

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7021

Females

786

F18-39

786

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6550

Females

671

F18-39

671

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6374

Females

686

F18-39

686

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5880

Females

641

F18-39

641

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5364

Females

604

F18-39

604

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5502

Females

751

F18-39

751

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5928

Females

896

F18-39

896

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6147

Females

1072

F18-39

1072

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5241

Females

803

F18-39

803

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5144

Females

827

F18-39

827

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6109

Females

1267

F18-39

1267

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

5015

Females

871

F18-39

871

Passing Analysis

Category:
Athletes Passed
2790
Passed By
291
Net Change
+2499
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8568
5K → 10K51665+451#8568#8117
10K → 15K30838+270#8117#7847
15K → 20K28531+254#7847#7593
20K → Half622+60#7593#7533
Half → 25K24212+230#7533#7303
25K → 30K41920+399#7303#6904
30K → 20M1979+188#6904#6716
20M → 21M1568+148#6716#6568
21M → 35K8319+64#6568#6504
35K → 23M13725+112#6504#6392
23M → 24M10622+84#6392#6308
24M → 40K1097+102#6308#6206
40K → 25.2M4616+30#6206#6176
25.2M → Finish12417+107#6176#6069
TOTALS2790291+2499
📊

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