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BOSTON MARATHON 2025

Ching-Pin Chen

Bib: 12451•M

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:47/mi
24:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:02/mi
49:07
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:13:20
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:37:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:43:18
↑ 19↓ 370.5%
25K· 15.53 mi
8:06/mi
2:02:56
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:29:17
↑ 181↓ 1480.2%
20M
8:40/mi
2:41:04
↑ 64↓ 500.2%
21M
9:27/mi
2:50:31
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
2:57:02
↑ 17↓ 861.7%
23M
8:42/mi
3:07:56
↑ 23↓ 630.6%
24M
8:25/mi
3:16:21
↓ 821.3%
40K· 24.85 mi
8:25/mi
3:23:33
↓ 200.3%
25.2M
9:28/mi
3:26:49
↑ 13↓ 160.2%
Finish· 26.22 mi
8:27/mi
3:35:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:18
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:52:08
Pace8:33 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4624:117:4724:11
7:47
-
10K
6.21 mi11:16:4249:077:5424:56
8:02
+0:15
15K
9.32 mi11:40:551:13:207:5224:13
7:48
-0:14
20K
12.43 mi12:05:321:37:577:5324:37
7:55
+0:07
Half
13.11 mi12:10:531:43:187:535:21
7:50
-0:05
25K
15.53 mi12:30:312:02:567:5519:38
8:06
+0:16
30K
18.64 mi12:56:522:29:178:0026:21
8:29
+0:23
20M
20.00 mi13:08:392:41:048:0311:47
8:40
+0:11
21M
21.00 mi13:18:062:50:318:079:27
9:27
+0:47
35K
21.75 mi13:24:372:57:028:086:31
8:43
-0:44
23M
23.00 mi13:35:313:07:568:1010:54
8:42
-0:01
24M
24.00 mi13:43:563:16:218:118:25
8:25
-0:17
40K
24.85 mi13:51:083:23:338:117:12
8:25
0:00
25.2M
25.20 mi13:54:243:26:498:123:16
9:28
+1:03
Finish
26.22 mi14:03:013:35:268:138:37
8:27
-1:01

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

7:47 /mi

Average Pace

8:13 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:56

57% of race

Time at Steady Pace

1:02:22

29% of race

Time at Slower Pace

30:08

14% of race

Average Pace: 8:13 /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 mi10:51:4624:117:4724:11
7:47
#14656
10K
6.21 mi11:16:4249:077:5424:56
8:02
#15716
15K
9.32 mi11:40:551:13:207:5224:13
7:48
#15219
20K
12.43 mi12:05:321:37:577:5324:37
7:55
#14936
Half
13.11 mi12:10:531:43:187:535:21
7:50
#14915
25K
15.53 mi12:30:312:02:567:5519:38
8:06
#14838
30K
18.64 mi12:56:522:29:178:0026:21
8:29
#14805
20M
20.00 mi13:08:392:41:048:0311:47
8:40
#14774
21M
21.00 mi13:18:062:50:318:079:27
9:27
#14809
35K
21.75 mi13:24:372:57:028:086:31
8:43
#14871
23M
23.00 mi13:35:313:07:568:1010:54
8:42
#14812
24M
24.00 mi13:43:563:16:218:118:25
8:25
#14757
40K
24.85 mi13:51:083:23:338:117:12
8:25
#14661
25.2M
25.20 mi13:54:243:26:498:123:16
9:28
#14643
Finish
26.22 mi14:03:013:35:268:138:37
8:27
#14670
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi14656102921029214313(Top 50%)10060(Top 62%)10060(Top 504%)
10K6.21 mi3.10 mi15716-106010701-40910701-40916663(Top 59%)11091(Top 69%)11091(Top 556%)
15K9.32 mi3.11 mi15219+49710489+21210489+21214313(Top 50%)10060(Top 62%)10060(Top 504%)
20K12.43 mi3.11 mi14936+28310344+14510344+14514292(Top 50%)10006(Top 62%)10006(Top 501%)
Half13.11 mi0.68 mi14915+2110327+1710327+1714559(Top 51%)10140(Top 63%)10140(Top 508%)
25K15.53 mi2.42 mi14838+7710266+6110266+6114611(Top 51%)10026(Top 62%)10026(Top 502%)
30K18.64 mi3.11 mi14805+3310198+6810198+6814624(Top 51%)9891(Top 61%)9891(Top 496%)
20M20.00 mi1.36 mi14774+3110166+3210166+3214864(Top 52%)9852(Top 61%)9852(Top 494%)
21M21.00 mi1.00 mi14809-3510151+1510151+1515837(Top 56%)10175(Top 63%)10175(Top 510%)
35K21.75 mi0.75 mi14871-6210166-1510166-1516707(Top 59%)10481(Top 65%)10481(Top 525%)
23M23.00 mi1.25 mi14812+5910110+5610110+5614571(Top 51%)9427(Top 59%)9427(Top 472%)
24M24.00 mi1.00 mi14757+5510052+5810052+5813978(Top 49%)9128(Top 57%)9128(Top 457%)
40K24.85 mi0.85 mi14661+969984+689984+6812911(Top 45%)8490(Top 53%)8490(Top 425%)
25.2M25.20 mi0.35 mi14643+189962+229962+2214398(Top 51%)9127(Top 57%)9127(Top 457%)
Finish26.22 mi1.02 mi14670-279944+189944+1815916(Top 56%)9898(Top 61%)9898(Top 496%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14313

Males

10060

M50-54

10060

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16663

Males

11091

M50-54

11091

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14313

Males

10060

M50-54

10060

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

14292

Males

10006

M50-54

10006

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

14559

Males

10140

M50-54

10140

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

14611

Males

10026

M50-54

10026

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14624

Males

9891

M50-54

9891

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

14864

Males

9852

M50-54

9852

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15837

Males

10175

M50-54

10175

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16707

Males

10481

M50-54

10481

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

14571

Males

9427

M50-54

9427

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13978

Males

9128

M50-54

9128

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12911

Males

8490

M50-54

8490

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14398

Males

9127

M50-54

9127

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15916

Males

9898

M50-54

9898

Passing Analysis

Category:
Athletes Passed
2217
Passed By
2231
Net Change
-14
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14656
5K → 10K611121-1060#14656#15716
10K → 15K52528+497#15716#15219
15K → 20K35269+283#15219#14936
20K → Half4322+21#14936#14915
Half → 25K207130+77#14915#14838
25K → 30K267234+33#14838#14805
30K → 20M146115+31#14805#14774
20M → 21M100135-35#14774#14809
21M → 35K44106-62#14809#14871
35K → 23M14687+59#14871#14812
23M → 24M9944+55#14812#14757
24M → 40K12226+96#14757#14661
40K → 25.2M4325+18#14661#14643
25.2M → Finish6289-27#14643#14670
TOTALS22172231-14
📊

Passing Visuals

Category:
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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