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BOSTON MARATHON 2025

Qi Zhang

Bib: 7249•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:30
Rank: #4596
Start → 5K
20:30 | 6:36/mi
10K· 6.21 mi
41:52
Rank: #5733 (-1137)
5K → 10K
21:22 | 6:53/mi
15K· 9.32 mi
1:03:43
Rank: #6533 (-800)
10K → 15K
21:51 | 7:02/mi
20K· 12.43 mi
1:29:11
Rank: #8779 (-2246)
15K → 20K
25:28 | 8:12/mi
Half· 13.11 mi
1:34:11
Rank: #8835 (-56)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:53:48
Rank: #9783 (-948)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:23:01
Rank: #12014 (-2231)
25K → 30K
29:13 | 9:24/mi
20M
2:36:05
Rank: #12767 (-753)
30K → 20M
13:04 | 9:37/mi
21M
2:46:22
Rank: #13263 (-496)
20M → 21M
10:17 | 10:17/mi
35K· 21.75 mi
2:53:13
Rank: #13513 (-250)
21M → 35K
6:51 | 9:09/mi
23M
3:05:08
Rank: #13920 (-407)
35K → 23M
11:55 | 9:31/mi
24M
3:14:26
Rank: #14220 (-300)
23M → 24M
9:18 | 9:18/mi
40K· 24.85 mi
3:22:42
Rank: #14418 (-198)
24M → 40K
8:16 | 9:40/mi
25.2M
3:25:57
Rank: #14408 (+10)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:34:14
Rank: #14355 (+53)
25.2M → Finish
8:17 | 8:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:11
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time2:00:03
Pace9:09 /mi
📊Positive Split: 27.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:5620:306:3620:30
6:36
-
10K
6.21 mi10:48:1841:526:4421:22
6:53
+0:17
15K
9.32 mi11:10:091:03:436:5021:51
7:02
+0:09
20K
12.43 mi11:35:371:29:117:1125:28
8:12
+1:10
Half
13.11 mi11:40:371:34:117:115:00
7:20
-0:52
25K
15.53 mi12:00:141:53:487:2019:37
8:05
+0:45
30K
18.64 mi12:29:272:23:017:4029:13
9:24
+1:19
20M
20.00 mi12:42:312:36:057:4813:04
9:37
+0:13
21M
21.00 mi12:52:482:46:227:5510:17
10:17
+0:40
35K
21.75 mi12:59:392:53:137:586:51
9:09
-1:08
23M
23.00 mi13:11:343:05:088:0311:55
9:31
+0:22
24M
24.00 mi13:20:523:14:268:069:18
9:18
-0:13
40K
24.85 mi13:29:083:22:428:098:16
9:40
+0:22
25.2M
25.20 mi13:32:233:25:578:103:15
9:25
-0:15
Finish
26.22 mi13:40:403:34:148:118:17
8:08
-1:17

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

6:36 /mi

Average Pace

8:11 /mi

Slowest Pace

10:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:05

57% of race

Time at Steady Pace

1:21:52

38% of race

Time at Slower Pace

10:17

5% of race

Average Pace: 8:10 /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 mi10:26:5620:306:3620:30
6:36
#4596
10K
6.21 mi10:48:1841:526:4421:22
6:53
#5733
15K
9.32 mi11:10:091:03:436:5021:51
7:02
#6533
20K
12.43 mi11:35:371:29:117:1125:28
8:12
#8779
Half
13.11 mi11:40:371:34:117:115:00
7:20
#8835
25K
15.53 mi12:00:141:53:487:2019:37
8:05
#9783
30K
18.64 mi12:29:272:23:017:4029:13
9:24
#12014
20M
20.00 mi12:42:312:36:057:4813:04
9:37
#12767
21M
21.00 mi12:52:482:46:227:5510:17
10:17
#13263
35K
21.75 mi12:59:392:53:137:586:51
9:09
#13513
23M
23.00 mi13:11:343:05:088:0311:55
9:31
#13920
24M
24.00 mi13:20:523:14:268:069:18
9:18
#14220
40K
24.85 mi13:29:083:22:428:098:16
9:40
#14418
25.2M
25.20 mi13:32:233:25:578:103:15
9:25
#14408
Finish
26.22 mi13:40:403:34:148:118:17
8:08
#14355
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4596431943197843(Top 28%)6839(Top 42%)6839(Top 121%)
10K6.21 mi3.10 mi5733-11375291-9725291-9727085(Top 25%)6343(Top 39%)6343(Top 112%)
15K9.32 mi3.11 mi6533-8005911-6205911-6207843(Top 28%)6839(Top 42%)6839(Top 121%)
20K12.43 mi3.11 mi8779-22467429-15187429-151816270(Top 57%)10852(Top 67%)10852(Top 192%)
Half13.11 mi0.68 mi8835-567460-317460-3110267(Top 36%)8183(Top 51%)8183(Top 145%)
25K15.53 mi2.42 mi9783-9487955-4957955-49514564(Top 51%)10004(Top 62%)10004(Top 177%)
30K18.64 mi3.11 mi12014-22318983-10288983-102819540(Top 69%)12072(Top 75%)12072(Top 214%)
20M20.00 mi1.36 mi12767-7539283-3009283-30019655(Top 69%)11991(Top 74%)11991(Top 213%)
21M21.00 mi1.00 mi13263-4969472-1899472-18919281(Top 68%)11742(Top 73%)11742(Top 208%)
35K21.75 mi0.75 mi13513-2509555-839555-8318947(Top 67%)11461(Top 71%)11461(Top 203%)
23M23.00 mi1.25 mi13920-4079703-1489703-14818755(Top 66%)11325(Top 70%)11325(Top 201%)
24M24.00 mi1.00 mi14220-3009809-1069809-10618793(Top 66%)11307(Top 70%)11307(Top 200%)
40K24.85 mi0.85 mi14418-1989873-649873-6419323(Top 68%)11470(Top 71%)11470(Top 203%)
25.2M25.20 mi0.35 mi14408+109857+169857+1614102(Top 50%)8987(Top 56%)8987(Top 159%)
Finish26.22 mi1.02 mi14355+539802+559802+5513774(Top 48%)8898(Top 55%)8898(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

7843

Males

6839

M18-39

6839

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

7085

Males

6343

M18-39

6343

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

7843

Males

6839

M18-39

6839

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

16270

Males

10852

M18-39

10852

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10267

Males

8183

M18-39

8183

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14564

Males

10004

M18-39

10004

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

19540

Males

12072

M18-39

12072

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

19655

Males

11991

M18-39

11991

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

19281

Males

11742

M18-39

11742

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

18947

Males

11461

M18-39

11461

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

18755

Males

11325

M18-39

11325

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

18793

Males

11307

M18-39

11307

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19323

Males

11470

M18-39

11470

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14102

Males

8987

M18-39

8987

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13774

Males

8898

M18-39

8898

Passing Analysis

Category:
Athletes Passed
396
Passed By
10153
Net Change
-9759
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4596
5K → 10K141151-1137#4596#5733
10K → 15K31831-800#5733#6533
15K → 20K32249-2246#6533#8779
20K → Half1672-56#8779#8835
Half → 25K31979-948#8835#9783
25K → 30K122241-2231#9783#12014
30K → 20M21774-753#12014#12767
20M → 21M23519-496#12767#13263
21M → 35K17267-250#13263#13513
35K → 23M40447-407#13513#13920
23M → 24M25325-300#13920#14220
24M → 40K35233-198#14220#14418
40K → 25.2M3525+10#14418#14408
25.2M → Finish9340+53#14408#14355
TOTALS39610153-9759
📊

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