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BOSTON MARATHON 2025

Gang Chen

Bib: 7007•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M50-54)
#0 / 1996
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:35
Rank: #2460
Start → 5K
19:35 | 6:18/mi
10K· 6.21 mi
39:24
Rank: #2678 (-218)
5K → 10K
19:49 | 6:23/mi
15K· 9.32 mi
59:35
Rank: #2954 (-276)
10K → 15K
20:11 | 6:30/mi
20K· 12.43 mi
1:20:14
Rank: #3205 (-251)
15K → 20K
20:39 | 6:39/mi
Half· 13.11 mi
1:24:44
Rank: #3254 (-49)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:41:03
Rank: #3414 (-160)
Half → 25K
16:19 | 6:44/mi
30K· 18.64 mi
2:03:38
Rank: #3843 (-429)
25K → 30K
22:35 | 7:16/mi
20M
2:13:52
Rank: #4063 (-220)
30K → 20M
10:14 | 7:32/mi
21M
2:21:55
Rank: #4256 (-193)
20M → 21M
8:03 | 8:03/mi
35K· 21.75 mi
2:27:23
Rank: #4379 (-123)
21M → 35K
5:28 | 7:18/mi
23M
2:36:20
Rank: #4361 (+18)
35K → 23M
8:57 | 7:09/mi
24M
2:43:20
Rank: #4353 (+8)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
2:49:39
Rank: #4424 (-71)
24M → 40K
6:19 | 7:23/mi
25.2M
2:52:30
Rank: #4478 (-54)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:00:03
Rank: #4693 (-215)
25.2M → Finish
7:33 | 7:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:44
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:35:19
Pace7:16 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0419:356:1819:35
6:18
-
10K
6.21 mi10:44:5339:246:2019:49
6:23
+0:05
15K
9.32 mi11:05:0459:356:2420:11
6:30
+0:07
20K
12.43 mi11:25:431:20:146:2720:39
6:39
+0:09
Half
13.11 mi11:30:131:24:446:284:30
6:36
-0:03
25K
15.53 mi11:46:321:41:036:3016:19
6:44
+0:08
30K
18.64 mi12:09:072:03:386:3822:35
7:16
+0:32
20M
20.00 mi12:19:212:13:526:4210:14
7:32
+0:16
21M
21.00 mi12:27:242:21:556:458:03
8:03
+0:31
35K
21.75 mi12:32:522:27:236:475:28
7:18
-0:45
23M
23.00 mi12:41:492:36:206:488:57
7:09
-0:09
24M
24.00 mi12:48:492:43:206:487:00
7:00
-0:09
40K
24.85 mi12:55:082:49:396:506:19
7:23
+0:23
25.2M
25.20 mi12:57:592:52:306:512:51
8:16
+0:53
Finish
26.22 mi13:05:323:00:036:527:33
7:25
-0:51

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

6:18 /mi

Average Pace

6:52 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:03

56% of race

Time at Steady Pace

57:52

32% of race

Time at Slower Pace

21:08

12% of race

Average Pace: 6:52 /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 mi10:25:0419:356:1819:35
6:18
#2460
10K
6.21 mi10:44:5339:246:2019:49
6:23
#2678
15K
9.32 mi11:05:0459:356:2420:11
6:30
#2954
20K
12.43 mi11:25:431:20:146:2720:39
6:39
#3205
Half
13.11 mi11:30:131:24:446:284:30
6:36
#3254
25K
15.53 mi11:46:321:41:036:3016:19
6:44
#3414
30K
18.64 mi12:09:072:03:386:3822:35
7:16
#3843
20M
20.00 mi12:19:212:13:526:4210:14
7:32
#4063
21M
21.00 mi12:27:242:21:556:458:03
8:03
#4256
35K
21.75 mi12:32:522:27:236:475:28
7:18
#4379
23M
23.00 mi12:41:492:36:206:488:57
7:09
#4361
24M
24.00 mi12:48:492:43:206:487:00
7:00
#4353
40K
24.85 mi12:55:082:49:396:506:19
7:23
#4424
25.2M
25.20 mi12:57:592:52:306:512:51
8:16
#4478
Finish
26.22 mi13:05:323:00:036:527:33
7:25
#4693
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi2460234323433544(Top 12%)3351(Top 21%)3351(Top 168%)
10K6.21 mi3.10 mi2678-2182549-2062549-2062897(Top 10%)2758(Top 17%)2758(Top 138%)
15K9.32 mi3.11 mi2954-2762814-2652814-2653544(Top 12%)3351(Top 21%)3351(Top 168%)
20K12.43 mi3.11 mi3205-2513052-2383052-2383984(Top 14%)3746(Top 23%)3746(Top 188%)
Half13.11 mi0.68 mi3254-493098-463098-464335(Top 15%)4057(Top 25%)4057(Top 203%)
25K15.53 mi2.42 mi3414-1603243-1453243-1454341(Top 15%)4023(Top 25%)4023(Top 202%)
30K18.64 mi3.11 mi3843-4293619-3763619-3766263(Top 22%)5492(Top 34%)5492(Top 275%)
20M20.00 mi1.36 mi4063-2203805-1863805-1867174(Top 25%)5937(Top 37%)5937(Top 297%)
21M21.00 mi1.00 mi4256-1933963-1583963-1587587(Top 27%)6005(Top 37%)6005(Top 301%)
35K21.75 mi0.75 mi4379-1234062-994062-997226(Top 25%)5810(Top 36%)5810(Top 291%)
23M23.00 mi1.25 mi4361+184038+244038+244566(Top 16%)3998(Top 25%)3998(Top 200%)
24M24.00 mi1.00 mi4353+84020+184020+184608(Top 16%)3979(Top 25%)3979(Top 199%)
40K24.85 mi0.85 mi4424-714074-544074-546089(Top 21%)4889(Top 30%)4889(Top 245%)
25.2M25.20 mi0.35 mi4478-544114-404114-407317(Top 26%)5482(Top 34%)5482(Top 275%)
Finish26.22 mi1.02 mi4693-2154295-1814295-1818499(Top 30%)6171(Top 38%)6171(Top 309%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3544

Males

3351

M50-54

3351

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2897

Males

2758

M50-54

2758

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3544

Males

3351

M50-54

3351

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3984

Males

3746

M50-54

3746

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4335

Males

4057

M50-54

4057

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4341

Males

4023

M50-54

4023

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6263

Males

5492

M50-54

5492

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7174

Males

5937

M50-54

5937

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7587

Males

6005

M50-54

6005

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7226

Males

5810

M50-54

5810

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4566

Males

3998

M50-54

3998

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4608

Males

3979

M50-54

3979

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

6089

Males

4889

M50-54

4889

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7317

Males

5482

M50-54

5482

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8499

Males

6171

M50-54

6171

Passing Analysis

Category:
Athletes Passed
411
Passed By
2644
Net Change
-2233
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2460
5K → 10K47265-218#2460#2678
10K → 15K20296-276#2678#2954
15K → 20K32283-251#2954#3205
20K → Half251-49#3205#3254
Half → 25K35195-160#3254#3414
25K → 30K31460-429#3414#3843
30K → 20M22242-220#3843#4063
20M → 21M27220-193#4063#4256
21M → 35K19142-123#4256#4379
35K → 23M7557+18#4379#4361
23M → 24M5547+8#4361#4353
24M → 40K29100-71#4353#4424
40K → 25.2M1165-54#4424#4478
25.2M → Finish6221-215#4478#4693
TOTALS4112644-2233
📊

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