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BOSTON MARATHON 2025

Gang Chen

Bib: 7205•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 32%
Masters (Masters Men)
#0 / 10463
Top 18%
Division (M50-54)
#0 / 1996
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:40
Rank: #5036
Start → 5K
20:40 | 6:39/mi
10K· 6.21 mi
41:25
Rank: #5053 (-17)
5K → 10K
20:45 | 6:41/mi
15K· 9.32 mi
1:02:37
Rank: #5423 (-370)
10K → 15K
21:12 | 6:49/mi
20K· 12.43 mi
1:23:58
Rank: #5532 (-109)
15K → 20K
21:21 | 6:52/mi
Half· 13.11 mi
1:28:35
Rank: #5544 (-12)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:44:56
Rank: #5315 (+229)
Half → 25K
16:21 | 6:45/mi
30K· 18.64 mi
2:07:16
Rank: #5390 (-75)
25K → 30K
22:20 | 7:11/mi
20M
2:17:23
Rank: #5521 (-131)
30K → 20M
10:07 | 7:27/mi
21M
2:25:11
Rank: #5525 (-4)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:30:31
Rank: #5541 (-16)
21M → 35K
5:20 | 7:08/mi
23M
2:40:04
Rank: #5552 (-11)
35K → 23M
9:33 | 7:38/mi
24M
2:47:34
Rank: #5578 (-26)
23M → 24M
7:30 | 7:30/mi
40K· 24.85 mi
2:54:17
Rank: #5634 (-56)
24M → 40K
6:43 | 7:51/mi
25.2M
2:57:16
Rank: #5653 (-19)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:05:09
Rank: #5782 (-129)
25.2M → Finish
7:53 | 7:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:35
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:36:34
Pace7:22 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:0020:406:3920:40
6:39
-
10K
6.21 mi10:48:4541:256:4020:45
6:41
+0:02
15K
9.32 mi11:09:571:02:376:4321:12
6:49
+0:08
20K
12.43 mi11:31:181:23:586:4521:21
6:52
+0:03
Half
13.11 mi11:35:551:28:356:454:37
6:46
-0:06
25K
15.53 mi11:52:161:44:566:4516:21
6:45
-0:01
30K
18.64 mi12:14:362:07:166:5022:20
7:11
+0:26
20M
20.00 mi12:24:432:17:236:5210:07
7:27
+0:16
21M
21.00 mi12:32:312:25:116:557:48
7:48
+0:21
35K
21.75 mi12:37:512:30:316:555:20
7:08
-0:40
23M
23.00 mi12:47:242:40:046:589:33
7:38
+0:30
24M
24.00 mi12:54:542:47:346:597:30
7:30
-0:08
40K
24.85 mi13:01:372:54:177:016:43
7:51
+0:21
25.2M
25.20 mi13:04:362:57:167:022:59
8:39
+0:48
Finish
26.22 mi13:12:293:05:097:047:53
7:44
-0:55

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

6:39 /mi

Average Pace

7:04 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:56

57% of race

Time at Steady Pace

37:47

20% of race

Time at Slower Pace

42:26

23% of race

Average Pace: 7:04 /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 mi10:28:0020:406:3920:40
6:39
#5036
10K
6.21 mi10:48:4541:256:4020:45
6:41
#5053
15K
9.32 mi11:09:571:02:376:4321:12
6:49
#5423
20K
12.43 mi11:31:181:23:586:4521:21
6:52
#5532
Half
13.11 mi11:35:551:28:356:454:37
6:46
#5544
25K
15.53 mi11:52:161:44:566:4516:21
6:45
#5315
30K
18.64 mi12:14:362:07:166:5022:20
7:11
#5390
20M
20.00 mi12:24:432:17:236:5210:07
7:27
#5521
21M
21.00 mi12:32:312:25:116:557:48
7:48
#5525
35K
21.75 mi12:37:512:30:316:555:20
7:08
#5541
23M
23.00 mi12:47:242:40:046:589:33
7:38
#5552
24M
24.00 mi12:54:542:47:346:597:30
7:30
#5578
40K
24.85 mi13:01:372:54:177:016:43
7:51
#5634
25.2M
25.20 mi13:04:362:57:167:022:59
8:39
#5653
Finish
26.22 mi13:12:293:05:097:047:53
7:44
#5782
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5036470247026307(Top 22%)5708(Top 35%)5708(Top 286%)
10K6.21 mi3.10 mi5053-174709-74709-75146(Top 18%)4789(Top 30%)4789(Top 240%)
15K9.32 mi3.11 mi5423-3705019-3105019-3106307(Top 22%)5708(Top 35%)5708(Top 286%)
20K12.43 mi3.11 mi5532-1095097-785097-785954(Top 21%)5397(Top 34%)5397(Top 270%)
Half13.11 mi0.68 mi5544-125099-25099-25783(Top 20%)5270(Top 33%)5270(Top 264%)
25K15.53 mi2.42 mi5315+2294902+1974902+1974433(Top 16%)4105(Top 25%)4105(Top 206%)
30K18.64 mi3.11 mi5390-754943-414943-415824(Top 21%)5182(Top 32%)5182(Top 260%)
20M20.00 mi1.36 mi5521-1315048-1055048-1056624(Top 23%)5584(Top 35%)5584(Top 280%)
21M21.00 mi1.00 mi5525-45040+85040+86159(Top 22%)5160(Top 32%)5160(Top 259%)
35K21.75 mi0.75 mi5541-165045-55045-56106(Top 21%)5128(Top 32%)5128(Top 257%)
23M23.00 mi1.25 mi5552-115037+85037+87389(Top 26%)5792(Top 36%)5792(Top 290%)
24M24.00 mi1.00 mi5578-265040-35040-37635(Top 27%)5883(Top 37%)5883(Top 295%)
40K24.85 mi0.85 mi5634-565070-305070-309113(Top 32%)6560(Top 41%)6560(Top 329%)
25.2M25.20 mi0.35 mi5653-195074-45074-49598(Top 34%)6717(Top 42%)6717(Top 337%)
Finish26.22 mi1.02 mi5782-1295155-815155-8110914(Top 38%)7453(Top 46%)7453(Top 373%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

6307

Males

5708

M50-54

5708

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5146

Males

4789

M50-54

4789

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

6307

Males

5708

M50-54

5708

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5954

Males

5397

M50-54

5397

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5783

Males

5270

M50-54

5270

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4433

Males

4105

M50-54

4105

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5824

Males

5182

M50-54

5182

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6624

Males

5584

M50-54

5584

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6159

Males

5160

M50-54

5160

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

6106

Males

5128

M50-54

5128

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

7389

Males

5792

M50-54

5792

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7635

Males

5883

M50-54

5883

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9113

Males

6560

M50-54

6560

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9598

Males

6717

M50-54

6717

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10914

Males

7453

M50-54

7453

Passing Analysis

Category:
Athletes Passed
1066
Passed By
1812
Net Change
-746
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5036
5K → 10K164181-17#5036#5053
10K → 15K38408-370#5053#5423
15K → 20K98207-109#5423#5532
20K → Half1931-12#5532#5544
Half → 25K24516+229#5544#5315
25K → 30K146221-75#5315#5390
30K → 20M45176-131#5390#5521
20M → 21M6468-4#5521#5525
21M → 35K3854-16#5525#5541
35K → 23M7990-11#5541#5552
23M → 24M4773-26#5552#5578
24M → 40K3187-56#5578#5634
40K → 25.2M2746-19#5634#5653
25.2M → Finish25154-129#5653#5782
TOTALS10661812-746
📊

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