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BOSTON MARATHON 2025

Guofan Zhao

Bib: 14813•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:14
Rank: #14800
Start → 5K
24:14 | 7:48/mi
10K· 6.21 mi
48:25
Rank: #14709 (+91)
5K → 10K
24:11 | 7:47/mi
15K· 9.32 mi
1:12:01
Rank: #13994 (+715)
10K → 15K
23:36 | 7:36/mi
20K· 12.43 mi
1:36:51
Rank: #14190 (-196)
15K → 20K
24:50 | 8:00/mi
Half· 13.11 mi
1:42:25
Rank: #14340 (-150)
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:02:35
Rank: #14642 (-302)
Half → 25K
20:10 | 8:19/mi
30K· 18.64 mi
2:29:07
Rank: #14728 (-86)
25K → 30K
26:32 | 8:32/mi
20M
2:41:20
Rank: #14871 (-143)
30K → 20M
12:13 | 8:59/mi
21M
2:51:46
Rank: #15245 (-374)
20M → 21M
10:26 | 10:26/mi
35K· 21.75 mi
2:58:20
Rank: #15301 (-56)
21M → 35K
6:34 | 8:47/mi
23M
3:10:02
Rank: #15468 (-167)
35K → 23M
11:42 | 9:21/mi
24M
3:18:43
Rank: #15468
23M → 24M
8:41 | 8:41/mi
40K· 24.85 mi
3:26:27
Rank: #15472 (-4)
24M → 40K
7:44 | 9:03/mi
25.2M
3:29:56
Rank: #15504 (-32)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:38:50
Rank: #15570 (-66)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:25
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:56:25
Pace8:53 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0224:147:4824:14
7:48
-
10K
6.21 mi11:18:1348:257:4824:11
7:47
-0:01
15K
9.32 mi11:41:491:12:017:4423:36
7:36
-0:11
20K
12.43 mi12:06:391:36:517:4824:50
8:00
+0:24
Half
13.11 mi12:12:131:42:257:495:34
8:10
+0:10
25K
15.53 mi12:32:232:02:357:5320:10
8:19
+0:09
30K
18.64 mi12:58:552:29:078:0026:32
8:32
+0:13
20M
20.00 mi13:11:082:41:208:0412:13
8:59
+0:27
21M
21.00 mi13:21:342:51:468:1110:26
10:26
+1:27
35K
21.75 mi13:28:082:58:208:126:34
8:47
-1:39
23M
23.00 mi13:39:503:10:028:1611:42
9:21
+0:34
24M
24.00 mi13:48:313:18:438:178:41
8:41
-0:40
40K
24.85 mi13:56:153:26:278:187:44
9:03
+0:22
25.2M
25.20 mi13:59:443:29:568:203:29
10:06
+1:03
Finish
26.22 mi14:08:383:38:508:218:54
8:44
-1:22

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

7:36 /mi

Average Pace

8:21 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:25

47% of race

Time at Steady Pace

1:30:48

41% of race

Time at Slower Pace

25:37

12% of race

Average Pace: 8:21 /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 mi10:54:0224:147:4824:14
7:48
#14800
10K
6.21 mi11:18:1348:257:4824:11
7:47
#14709
15K
9.32 mi11:41:491:12:017:4423:36
7:36
#13994
20K
12.43 mi12:06:391:36:517:4824:50
8:00
#14190
Half
13.11 mi12:12:131:42:257:495:34
8:10
#14340
25K
15.53 mi12:32:232:02:357:5320:10
8:19
#14642
30K
18.64 mi12:58:552:29:078:0026:32
8:32
#14728
20M
20.00 mi13:11:082:41:208:0412:13
8:59
#14871
21M
21.00 mi13:21:342:51:468:1110:26
10:26
#15245
35K
21.75 mi13:28:082:58:208:126:34
8:47
#15301
23M
23.00 mi13:39:503:10:028:1611:42
9:21
#15468
24M
24.00 mi13:48:313:18:438:178:41
8:41
#15468
40K
24.85 mi13:56:153:26:278:187:44
9:03
#15472
25.2M
25.20 mi13:59:443:29:568:203:29
10:06
#15504
Finish
26.22 mi14:08:383:38:508:218:54
8:44
#15570
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14800103471034712565(Top 44%)9335(Top 58%)9335(Top 566%)
10K6.21 mi3.10 mi14709+9110294+5310294+5314657(Top 52%)10278(Top 64%)10278(Top 624%)
15K9.32 mi3.11 mi13994+7159985+3099985+30912565(Top 44%)9335(Top 58%)9335(Top 566%)
20K12.43 mi3.11 mi14190-19610033-4810033-4814872(Top 52%)10252(Top 64%)10252(Top 622%)
Half13.11 mi0.68 mi14340-15010093-6010093-6016962(Top 60%)11153(Top 69%)11153(Top 677%)
25K15.53 mi2.42 mi14642-30210182-8910182-8916014(Top 56%)10649(Top 66%)10649(Top 646%)
30K18.64 mi3.11 mi14728-8610163+1910163+1915003(Top 53%)10056(Top 62%)10056(Top 610%)
20M20.00 mi1.36 mi14871-14310209-4610209-4616719(Top 59%)10689(Top 66%)10689(Top 649%)
21M21.00 mi1.00 mi15245-37410339-13010339-13019784(Top 70%)11942(Top 74%)11942(Top 725%)
35K21.75 mi0.75 mi15301-5610349-1010349-1017095(Top 60%)10643(Top 66%)10643(Top 646%)
23M23.00 mi1.25 mi15468-16710371-2210371-2217973(Top 63%)10951(Top 68%)10951(Top 665%)
24M24.00 mi1.00 mi1546810352+1910352+1915620(Top 55%)9879(Top 61%)9879(Top 599%)
40K24.85 mi0.85 mi15472-410315+3710315+3716545(Top 58%)10166(Top 63%)10166(Top 617%)
25.2M25.20 mi0.35 mi15504-3210318-310318-317411(Top 61%)10551(Top 66%)10551(Top 640%)
Finish26.22 mi1.02 mi15570-6610335-1710335-1717650(Top 62%)10703(Top 66%)10703(Top 649%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

12565

Males

9335

M55-59

9335

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

14657

Males

10278

M55-59

10278

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

12565

Males

9335

M55-59

9335

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

14872

Males

10252

M55-59

10252

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

16962

Males

11153

M55-59

11153

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

16014

Males

10649

M55-59

10649

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

15003

Males

10056

M55-59

10056

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

16719

Males

10689

M55-59

10689

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

19784

Males

11942

M55-59

11942

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

17095

Males

10643

M55-59

10643

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

17973

Males

10951

M55-59

10951

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

15620

Males

9879

M55-59

9879

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16545

Males

10166

M55-59

10166

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17411

Males

10551

M55-59

10551

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17650

Males

10703

M55-59

10703

Passing Analysis

Category:
Athletes Passed
1994
Passed By
2764
Net Change
-770
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14800
5K → 10K340249+91#14800#14709
10K → 15K72813+715#14709#13994
15K → 20K162358-196#13994#14190
20K → Half3153-150#14190#14340
Half → 25K96398-302#14340#14642
25K → 30K217303-86#14642#14728
30K → 20M89232-143#14728#14871
20M → 21M44418-374#14871#15245
21M → 35K53109-56#15245#15301
35K → 23M66233-167#15301#15468
23M → 24M66660#15468#15468
24M → 40K6872-4#15468#15472
40K → 25.2M1951-32#15472#15504
25.2M → Finish43109-66#15504#15570
TOTALS19942764-770
📊

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