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BOSTON MARATHON 2025

Chen Yulan

Bib: 17587•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 26%
Division (F18-39)
#0 / 5469
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:47
Rank: #10724
Start → 5K
22:47 | 7:20/mi
10K· 6.21 mi
45:40
Rank: #10776 (-52)
5K → 10K
22:53 | 7:22/mi
15K· 9.32 mi
1:08:57
Rank: #11047 (-271)
10K → 15K
23:17 | 7:30/mi
20K· 12.43 mi
1:32:01
Rank: #10802 (+245)
15K → 20K
23:04 | 7:25/mi
Half· 13.11 mi
1:36:59
Rank: #10746 (+56)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:55:17
Rank: #10624 (+122)
Half → 25K
18:18 | 7:33/mi
30K· 18.64 mi
2:21:50
Rank: #11494 (-870)
25K → 30K
26:33 | 8:33/mi
20M
2:34:08
Rank: #11976 (-482)
30K → 20M
12:18 | 9:03/mi
21M
2:42:42
Rank: #11868 (+108)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:48:42
Rank: #11866 (+2)
21M → 35K
6:00 | 8:01/mi
23M
2:58:56
Rank: #11806 (+60)
35K → 23M
10:14 | 8:10/mi
24M
3:06:51
Rank: #11736 (+70)
23M → 24M
7:55 | 7:55/mi
40K· 24.85 mi
3:13:41
Rank: #11625 (+111)
24M → 40K
6:50 | 8:00/mi
25.2M
3:16:41
Rank: #11588 (+37)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:25:09
Rank: #11726 (-138)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:59
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:48:10
Pace8:15 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:1822:477:2022:47
7:20
-
10K
6.21 mi11:36:1145:407:2122:53
7:22
+0:02
15K
9.32 mi11:59:281:08:577:2423:17
7:30
+0:08
20K
12.43 mi12:22:321:32:017:2423:04
7:25
-0:05
Half
13.11 mi12:27:301:36:597:244:58
7:17
-0:08
25K
15.53 mi12:45:481:55:177:2518:18
7:33
+0:16
30K
18.64 mi13:12:212:21:507:3726:33
8:33
+1:00
20M
20.00 mi13:24:392:34:087:4212:18
9:03
+0:30
21M
21.00 mi13:33:132:42:427:458:34
8:34
-0:29
35K
21.75 mi13:39:132:48:427:456:00
8:01
-0:33
23M
23.00 mi13:49:272:58:567:4710:14
8:10
+0:09
24M
24.00 mi13:57:223:06:517:477:55
7:55
-0:15
40K
24.85 mi14:04:123:13:417:486:50
8:00
+0:05
25.2M
25.20 mi14:07:123:16:417:483:00
8:42
+0:42
Finish
26.22 mi14:15:403:25:097:508:28
8:19
-0:23

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

7:50 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:17

56% of race

Time at Steady Pace

30:59

15% of race

Time at Slower Pace

58:53

29% of race

Average Pace: 7:49 /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 mi11:13:1822:477:2022:47
7:20
#10724
10K
6.21 mi11:36:1145:407:2122:53
7:22
#10776
15K
9.32 mi11:59:281:08:577:2423:17
7:30
#11047
20K
12.43 mi12:22:321:32:017:2423:04
7:25
#10802
Half
13.11 mi12:27:301:36:597:244:58
7:17
#10746
25K
15.53 mi12:45:481:55:177:2518:18
7:33
#10624
30K
18.64 mi13:12:212:21:507:3726:33
8:33
#11494
20M
20.00 mi13:24:392:34:087:4212:18
9:03
#11976
21M
21.00 mi13:33:132:42:427:458:34
8:34
#11868
35K
21.75 mi13:39:132:48:427:456:00
8:01
#11866
23M
23.00 mi13:49:272:58:567:4710:14
8:10
#11806
24M
24.00 mi13:57:223:06:517:477:55
7:55
#11736
40K
24.85 mi14:04:123:13:417:486:50
8:00
#11625
25.2M
25.20 mi14:07:123:16:417:483:00
8:42
#11588
Finish
26.22 mi14:15:403:25:097:508:28
8:19
#11726
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107242150215011743(Top 41%)2764(Top 23%)2764(Top 51%)
10K6.21 mi3.10 mi10776-522194-442194-4410894(Top 38%)2254(Top 18%)2254(Top 41%)
15K9.32 mi3.11 mi11047-2712347-1532347-15311743(Top 41%)2764(Top 23%)2764(Top 51%)
20K12.43 mi3.11 mi10802+2452245+1022245+10210129(Top 36%)2023(Top 17%)2023(Top 37%)
Half13.11 mi0.68 mi10746+562217+282217+289927(Top 35%)1943(Top 16%)1943(Top 36%)
25K15.53 mi2.42 mi10624+1222196+212196+2110374(Top 37%)2278(Top 19%)2278(Top 42%)
30K18.64 mi3.11 mi11494-8702730-5342730-53415054(Top 53%)4929(Top 40%)4929(Top 90%)
20M20.00 mi1.36 mi11976-4823020-2903020-29017068(Top 60%)6170(Top 50%)6170(Top 113%)
21M21.00 mi1.00 mi11868+1083005+153005+1510923(Top 38%)3060(Top 25%)3060(Top 56%)
35K21.75 mi0.75 mi11866+23023-183023-1812407(Top 44%)3842(Top 31%)3842(Top 70%)
23M23.00 mi1.25 mi11806+603033-103033-1011216(Top 39%)3333(Top 27%)3333(Top 61%)
24M24.00 mi1.00 mi11736+703044-113044-1110695(Top 38%)3136(Top 26%)3136(Top 57%)
40K24.85 mi0.85 mi11625+1113011+333011+3310181(Top 36%)3021(Top 25%)3021(Top 55%)
25.2M25.20 mi0.35 mi11588+373005+63005+610081(Top 35%)3068(Top 25%)3068(Top 56%)
Finish26.22 mi1.02 mi11726-1383121-1163121-11614967(Top 53%)5452(Top 45%)5452(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11743

Females

2764

F18-39

2764

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10894

Females

2254

F18-39

2254

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11743

Females

2764

F18-39

2764

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10129

Females

2023

F18-39

2023

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9927

Females

1943

F18-39

1943

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10374

Females

2278

F18-39

2278

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

15054

Females

4929

F18-39

4929

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17068

Females

6170

F18-39

6170

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10923

Females

3060

F18-39

3060

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

12407

Females

3842

F18-39

3842

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

11216

Females

3333

F18-39

3333

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10695

Females

3136

F18-39

3136

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10181

Females

3021

F18-39

3021

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

10081

Females

3068

F18-39

3068

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14967

Females

5452

F18-39

5452

Passing Analysis

Category:
Athletes Passed
1717
Passed By
2718
Net Change
-1002
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10724
5K → 10K224276-52#10724#10776
10K → 15K93364-271#10776#11047
15K → 20K30459+245#11047#10802
20K → Half6610+56#10802#10746
Half → 25K21896+122#10746#10624
25K → 30K67936-870#10624#11494
30K → 20M41523-482#11494#11976
20M → 21M15749+108#11976#11868
21M → 35K5553+2#11868#11866
35K → 23M14383+60#11866#11806
23M → 24M11040+70#11806#11736
24M → 40K13726+111#11736#11625
40K → 25.2M5215+37#11625#11588
25.2M → Finish50188-138#11588#11726
TOTALS17172718-1002
📊

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