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BOSTON MARATHON 2025

Ziyan Feng

Bib: 16078•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 43%
Gender (Female)
#0 / 12228
Top 27%
Division (F18-39)
#0 / 5469
Top 45%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:36
Rank: #13091
Start → 5K
23:36 | 7:36/mi
10K· 6.21 mi
47:25
Rank: #13323 (-232)
5K → 10K
23:49 | 7:40/mi
15K· 9.32 mi
1:11:25
Rank: #13427 (-104)
10K → 15K
24:00 | 7:43/mi
20K· 12.43 mi
1:35:32
Rank: #13259 (+168)
15K → 20K
24:07 | 7:46/mi
Half· 13.11 mi
1:40:45
Rank: #13230 (+29)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
2:00:00
Rank: #13233 (-3)
Half → 25K
19:15 | 7:56/mi
30K· 18.64 mi
2:25:22
Rank: #13067 (+166)
25K → 30K
25:22 | 8:10/mi
20M
2:36:36
Rank: #12983 (+84)
30K → 20M
11:14 | 8:16/mi
21M
2:45:11
Rank: #12846 (+137)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
2:50:57
Rank: #12714 (+132)
21M → 35K
5:46 | 7:42/mi
23M
3:01:05
Rank: #12549 (+165)
35K → 23M
10:08 | 8:06/mi
24M
3:08:51
Rank: #12394 (+155)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
3:15:45
Rank: #12300 (+94)
24M → 40K
6:54 | 8:04/mi
25.2M
3:18:49
Rank: #12268 (+32)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:26:32
Rank: #12139 (+129)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:45
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:45:47
Pace8:04 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:5523:367:3623:36
7:36
-
10K
6.21 mi11:20:4447:257:3823:49
7:40
+0:04
15K
9.32 mi11:44:441:11:257:4024:00
7:43
+0:03
20K
12.43 mi12:08:511:35:327:4124:07
7:46
+0:03
Half
13.11 mi12:14:041:40:457:415:13
7:39
-0:07
25K
15.53 mi12:33:192:00:007:4319:15
7:56
+0:17
30K
18.64 mi12:58:412:25:227:4825:22
8:10
+0:14
20M
20.00 mi13:09:552:36:367:5011:14
8:16
+0:06
21M
21.00 mi13:18:302:45:117:528:35
8:35
+0:19
35K
21.75 mi13:24:162:50:577:525:46
7:42
-0:53
23M
23.00 mi13:34:243:01:057:5210:08
8:06
+0:24
24M
24.00 mi13:42:103:08:517:527:46
7:46
-0:20
40K
24.85 mi13:49:043:15:457:536:54
8:04
+0:18
25.2M
25.20 mi13:52:083:18:497:533:04
8:54
+0:50
Finish
26.22 mi13:59:513:26:327:537:43
7:34
-1:20

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

7:34 /mi

Average Pace

7:53 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:53

94% of race

Time at Steady Pace

11:39

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:53 /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 mi10:56:5523:367:3623:36
7:36
#13091
10K
6.21 mi11:20:4447:257:3823:49
7:40
#13323
15K
9.32 mi11:44:441:11:257:4024:00
7:43
#13427
20K
12.43 mi12:08:511:35:327:4124:07
7:46
#13259
Half
13.11 mi12:14:041:40:457:415:13
7:39
#13230
25K
15.53 mi12:33:192:00:007:4319:15
7:56
#13233
30K
18.64 mi12:58:412:25:227:4825:22
8:10
#13067
20M
20.00 mi13:09:552:36:367:5011:14
8:16
#12983
21M
21.00 mi13:18:302:45:117:528:35
8:35
#12846
35K
21.75 mi13:24:162:50:577:525:46
7:42
#12714
23M
23.00 mi13:34:243:01:057:5210:08
8:06
#12549
24M
24.00 mi13:42:103:08:517:527:46
7:46
#12394
40K
24.85 mi13:49:043:15:457:536:54
8:04
#12300
25.2M
25.20 mi13:52:083:18:497:533:04
8:54
#12268
Finish
26.22 mi13:59:513:26:327:537:43
7:34
#12139
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi130913370337013748(Top 48%)3866(Top 32%)3866(Top 71%)
10K6.21 mi3.10 mi13323-2323542-1723542-17213593(Top 48%)3715(Top 30%)3715(Top 68%)
15K9.32 mi3.11 mi13427-1043643-1013643-10113748(Top 48%)3866(Top 32%)3866(Top 71%)
20K12.43 mi3.11 mi13259+1683586+573586+5712974(Top 46%)3533(Top 29%)3533(Top 65%)
Half13.11 mi0.68 mi13230+293576+103576+1013017(Top 46%)3503(Top 29%)3503(Top 64%)
25K15.53 mi2.42 mi13233-33617-413617-4113421(Top 47%)3888(Top 32%)3888(Top 71%)
30K18.64 mi3.11 mi13067+1663591+263591+2612565(Top 44%)3599(Top 29%)3599(Top 66%)
20M20.00 mi1.36 mi12983+843567+243567+2412282(Top 43%)3582(Top 29%)3582(Top 65%)
21M21.00 mi1.00 mi12846+1373530+373530+3711011(Top 39%)3106(Top 25%)3106(Top 57%)
35K21.75 mi0.75 mi12714+1323481+493481+4910195(Top 36%)2713(Top 22%)2713(Top 50%)
23M23.00 mi1.25 mi12549+1653422+593422+5910729(Top 38%)3101(Top 25%)3101(Top 57%)
24M24.00 mi1.00 mi12394+1553372+503372+509617(Top 34%)2623(Top 21%)2623(Top 48%)
40K24.85 mi0.85 mi12300+943353+193353+1910696(Top 38%)3265(Top 27%)3265(Top 60%)
25.2M25.20 mi0.35 mi12268+323354-13354-111249(Top 40%)3623(Top 30%)3623(Top 66%)
Finish26.22 mi1.02 mi12139+1293316+383316+389777(Top 34%)2895(Top 24%)2895(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

13748

Females

3866

F18-39

3866

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

13593

Females

3715

F18-39

3715

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

13748

Females

3866

F18-39

3866

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

12974

Females

3533

F18-39

3533

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

13017

Females

3503

F18-39

3503

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

13421

Females

3888

F18-39

3888

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

12565

Females

3599

F18-39

3599

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

12282

Females

3582

F18-39

3582

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

11011

Females

3106

F18-39

3106

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10195

Females

2713

F18-39

2713

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10729

Females

3101

F18-39

3101

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9617

Females

2623

F18-39

2623

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10696

Females

3265

F18-39

3265

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11249

Females

3623

F18-39

3623

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9777

Females

2895

F18-39

2895

Passing Analysis

Category:
Athletes Passed
2314
Passed By
1362
Net Change
+952
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13091
5K → 10K198430-232#13091#13323
10K → 15K165269-104#13323#13427
15K → 20K274106+168#13427#13259
20K → Half4920+29#13259#13230
Half → 25K168171-3#13230#13233
25K → 30K319153+166#13233#13067
30K → 20M15470+84#13067#12983
20M → 21M17033+137#12983#12846
21M → 35K1397+132#12846#12714
35K → 23M19732+165#12714#12549
23M → 24M16914+155#12549#12394
24M → 40K11925+94#12394#12300
40K → 25.2M4715+32#12300#12268
25.2M → Finish14617+129#12268#12139
TOTALS23141362+952
📊

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