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BOSTON MARATHON 2025

Carl Chen

Bib: 20888•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 50%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 21%
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
7:43/mi
23:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
47:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:45/mi
1:12:02
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:36:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:42:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:57/mi
2:01:16
↑ 66↓ 880.2%
30K· 18.64 mi
8:40/mi
2:28:12
↑ 181↓ 1480.2%
20M
8:47/mi
2:40:08
↑ 64↓ 500.2%
21M
8:53/mi
2:49:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:54:50
↑ 17↓ 861.7%
23M
8:47/mi
3:05:50
↑ 23↓ 630.6%
24M
8:23/mi
3:14:13
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:21:21
↓ 200.3%
25.2M
9:02/mi
3:24:28
↑ 13↓ 160.2%
Finish· 26.22 mi
8:37/mi
3:33:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:00
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:51:15
Pace8:29 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3423:587:4323:58
7:43
-
10K
6.21 mi11:41:3447:587:4324:00
7:43
0:00
15K
9.32 mi12:05:381:12:027:4424:04
7:45
+0:02
20K
12.43 mi12:30:181:36:427:4724:40
7:56
+0:11
Half
13.11 mi12:35:361:42:007:475:18
7:46
-0:10
25K
15.53 mi12:54:522:01:167:4819:16
7:57
+0:11
30K
18.64 mi13:21:482:28:127:5726:56
8:40
+0:43
20M
20.00 mi13:33:442:40:088:0011:56
8:47
+0:07
21M
21.00 mi13:42:372:49:018:038:53
8:53
+0:06
35K
21.75 mi13:48:262:54:508:025:49
7:46
-1:07
23M
23.00 mi13:59:263:05:508:0511:00
8:47
+1:01
24M
24.00 mi14:07:493:14:138:068:23
8:23
-0:24
40K
24.85 mi14:14:573:21:218:067:08
8:21
-0:02
25.2M
25.20 mi14:18:043:24:288:073:07
9:02
+0:41
Finish
26.22 mi14:26:513:33:158:088:47
8:37
-0:25

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

7:43 /mi

Average Pace

8:08 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:36

67% of race

Time at Steady Pace

1:10:39

33% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:08 /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 mi11:17:3423:587:4323:58
7:43
#14084
10K
6.21 mi11:41:3447:587:4324:00
7:43
#14055
15K
9.32 mi12:05:381:12:027:4424:04
7:45
#14006
20K
12.43 mi12:30:181:36:427:4724:40
7:56
#14090
Half
13.11 mi12:35:361:42:007:475:18
7:46
#14082
25K
15.53 mi12:54:522:01:167:4819:16
7:57
#13936
30K
18.64 mi13:21:482:28:127:5726:56
8:40
#14282
20M
20.00 mi13:33:442:40:088:0011:56
8:47
#14380
21M
21.00 mi13:42:372:49:018:038:53
8:53
#14266
35K
21.75 mi13:48:262:54:508:025:49
7:46
#14082
23M
23.00 mi13:59:263:05:508:0511:00
8:47
#14175
24M
24.00 mi14:07:493:14:138:068:23
8:23
#14144
40K
24.85 mi14:14:573:21:218:067:08
8:21
#14057
25.2M
25.20 mi14:18:043:24:288:073:07
9:02
#14004
Finish
26.22 mi14:26:513:33:158:088:47
8:37
#14108
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi14084100821008213894(Top 49%)9902(Top 61%)9902(Top 786%)
10K6.21 mi3.10 mi14055+2910041+4110041+4114102(Top 50%)10045(Top 62%)10045(Top 798%)
15K9.32 mi3.11 mi14006+499991+509991+5013894(Top 49%)9902(Top 61%)9902(Top 786%)
20K12.43 mi3.11 mi14090-849995-49995-414434(Top 51%)10059(Top 62%)10059(Top 799%)
Half13.11 mi0.68 mi14082+89990+59990+513941(Top 49%)9885(Top 61%)9885(Top 785%)
25K15.53 mi2.42 mi13936+1469887+1039887+10313476(Top 47%)9516(Top 59%)9516(Top 756%)
30K18.64 mi3.11 mi14282-3469973-869973-8615810(Top 56%)10418(Top 65%)10418(Top 827%)
20M20.00 mi1.36 mi14380-989991-189991-1815526(Top 55%)10162(Top 63%)10162(Top 807%)
21M21.00 mi1.00 mi14266+1149920+719920+7112816(Top 45%)8757(Top 54%)8757(Top 696%)
35K21.75 mi0.75 mi14082+1849809+1119809+11110622(Top 37%)7691(Top 48%)7691(Top 611%)
23M23.00 mi1.25 mi14175-939808+19808+115014(Top 53%)9629(Top 60%)9629(Top 765%)
24M24.00 mi1.00 mi14144+319769+399769+3913750(Top 48%)9028(Top 56%)9028(Top 717%)
40K24.85 mi0.85 mi14057+879709+609709+6012410(Top 44%)8250(Top 51%)8250(Top 655%)
25.2M25.20 mi0.35 mi14004+539672+379672+3711979(Top 42%)7990(Top 50%)7990(Top 635%)
Finish26.22 mi1.02 mi14108-1049696-249696-2416935(Top 60%)10359(Top 64%)10359(Top 823%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13894

Males

9902

M60-64

9902

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14102

Males

10045

M60-64

10045

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13894

Males

9902

M60-64

9902

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14434

Males

10059

M60-64

10059

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13941

Males

9885

M60-64

9885

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13476

Males

9516

M60-64

9516

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15810

Males

10418

M60-64

10418

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15526

Males

10162

M60-64

10162

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12816

Males

8757

M60-64

8757

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10622

Males

7691

M60-64

7691

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

15014

Males

9629

M60-64

9629

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13750

Males

9028

M60-64

9028

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12410

Males

8250

M60-64

8250

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11979

Males

7990

M60-64

7990

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

16935

Males

10359

M60-64

10359

Passing Analysis

Category:
Athletes Passed
1955
Passed By
1979
Net Change
-24
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14084
5K → 10K280251+29#14084#14055
10K → 15K212163+49#14055#14006
15K → 20K190274-84#14006#14090
20K → Half3628+8#14090#14082
Half → 25K23488+146#14082#13936
25K → 30K169515-346#13936#14282
30K → 20M86184-98#14282#14380
20M → 21M16551+114#14380#14266
21M → 35K1862+184#14266#14082
35K → 23M85178-93#14082#14175
23M → 24M9362+31#14175#14144
24M → 40K11225+87#14144#14057
40K → 25.2M6512+53#14057#14004
25.2M → Finish42146-104#14004#14108
TOTALS19551979-24
📊

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