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BOSTON MARATHON 2025

Jin Ma

Bib: 13200•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 49%
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
7:11/mi
22:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
45:11
↑ 79↓ 1380.4%
15K· 9.32 mi
7:55/mi
1:09:48
↑ 67↓ 78
20K· 12.43 mi
8:02/mi
1:34:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:40:03
↑ 19↓ 370.5%
25K· 15.53 mi
8:10/mi
1:59:52
↑ 66↓ 880.2%
30K· 18.64 mi
9:04/mi
2:28:02
↑ 181↓ 1480.2%
20M
8:40/mi
2:39:48
↑ 64↓ 500.2%
21M
9:01/mi
2:48:49
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
2:55:00
↑ 17↓ 861.7%
23M
8:11/mi
3:05:15
↑ 23↓ 630.6%
24M
8:07/mi
3:13:22
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:20:35
↓ 200.3%
25.2M
9:14/mi
3:23:46
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
3:32:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:03
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:52:06
Pace8:33 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0522:197:1122:19
7:11
-
10K
6.21 mi11:13:5745:117:1622:52
7:22
+0:11
15K
9.32 mi11:38:341:09:487:2924:37
7:55
+0:33
20K
12.43 mi12:03:331:34:477:3824:59
8:02
+0:07
Half
13.11 mi12:08:491:40:037:385:16
7:43
-0:19
25K
15.53 mi12:28:381:59:527:4319:49
8:10
+0:27
30K
18.64 mi12:56:482:28:027:5628:10
9:04
+0:54
20M
20.00 mi13:08:342:39:487:5911:46
8:40
-0:24
21M
21.00 mi13:17:352:48:498:029:01
9:01
+0:21
35K
21.75 mi13:23:462:55:008:036:11
8:16
-0:45
23M
23.00 mi13:34:013:05:158:0310:15
8:11
-0:05
24M
24.00 mi13:42:083:13:228:038:07
8:07
-0:04
40K
24.85 mi13:49:213:20:358:047:13
8:26
+0:19
25.2M
25.20 mi13:52:323:23:468:053:11
9:14
+0:48
Finish
26.22 mi14:00:553:32:098:068:23
8:14
-1:00

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

7:11 /mi

Average Pace

8:06 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:27

24% of race

Time at Steady Pace

1:49:34

52% of race

Time at Slower Pace

52:08

25% of race

Average Pace: 8:05 /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 mi10:51:0522:197:1122:19
7:11
#9325
10K
6.21 mi11:13:5745:117:1622:52
7:22
#10092
15K
9.32 mi11:38:341:09:487:2924:37
7:55
#11887
20K
12.43 mi12:03:331:34:477:3824:59
8:02
#12718
Half
13.11 mi12:08:491:40:037:385:16
7:43
#12760
25K
15.53 mi12:28:381:59:527:4319:49
8:10
#13154
30K
18.64 mi12:56:482:28:027:5628:10
9:04
#14200
20M
20.00 mi13:08:342:39:487:5911:46
8:40
#14233
21M
21.00 mi13:17:352:48:498:029:01
9:01
#14164
35K
21.75 mi13:23:462:55:008:036:11
8:16
#14159
23M
23.00 mi13:34:013:05:158:0310:15
8:11
#13963
24M
24.00 mi13:42:083:13:228:038:07
8:07
#13852
40K
24.85 mi13:49:213:20:358:047:13
8:26
#13804
25.2M
25.20 mi13:52:323:23:468:053:11
9:14
#13784
Finish
26.22 mi14:00:553:32:098:068:23
8:14
#13789
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi93257787778715402(Top 54%)10544(Top 65%)10544(Top 528%)
10K6.21 mi3.10 mi10092-7678213-4268213-42610826(Top 38%)8583(Top 53%)8583(Top 430%)
15K9.32 mi3.11 mi11887-17959095-8829095-88215402(Top 54%)10544(Top 65%)10544(Top 528%)
20K12.43 mi3.11 mi12718-8319399-3049399-30415206(Top 54%)10403(Top 65%)10403(Top 521%)
Half13.11 mi0.68 mi12760-429412-139412-1313508(Top 48%)9696(Top 60%)9696(Top 486%)
25K15.53 mi2.42 mi13154-3949555-1439555-14315111(Top 53%)10274(Top 64%)10274(Top 515%)
30K18.64 mi3.11 mi14200-10469937-3829937-38217992(Top 63%)11372(Top 71%)11372(Top 570%)
20M20.00 mi1.36 mi14233-339926+119926+1114763(Top 52%)9800(Top 61%)9800(Top 491%)
21M21.00 mi1.00 mi14164+699867+599867+5913598(Top 48%)9154(Top 57%)9154(Top 459%)
35K21.75 mi0.75 mi14159+59848+199848+1914006(Top 49%)9291(Top 58%)9291(Top 465%)
23M23.00 mi1.25 mi13963+1969719+1299719+12911276(Top 40%)7888(Top 49%)7888(Top 395%)
24M24.00 mi1.00 mi13852+1119635+849635+8412012(Top 42%)8178(Top 51%)8178(Top 410%)
40K24.85 mi0.85 mi13804+489580+559580+5513022(Top 46%)8537(Top 53%)8537(Top 428%)
25.2M25.20 mi0.35 mi13784+209561+199561+1913049(Top 46%)8494(Top 53%)8494(Top 426%)
Finish26.22 mi1.02 mi13789-59543+189543+1814427(Top 51%)9221(Top 57%)9221(Top 462%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15402

Males

10544

M50-54

10544

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10826

Males

8583

M50-54

8583

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15402

Males

10544

M50-54

10544

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15206

Males

10403

M50-54

10403

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13508

Males

9696

M50-54

9696

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

15111

Males

10274

M50-54

10274

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17992

Males

11372

M50-54

11372

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

14763

Males

9800

M50-54

9800

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13598

Males

9154

M50-54

9154

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

14006

Males

9291

M50-54

9291

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

11276

Males

7888

M50-54

7888

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

12012

Males

8178

M50-54

8178

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13022

Males

8537

M50-54

8537

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13049

Males

8494

M50-54

8494

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14427

Males

9221

M50-54

9221

Passing Analysis

Category:
Athletes Passed
1185
Passed By
5647
Net Change
-4464
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9325
5K → 10K53818-767#9325#10092
10K → 15K131808-1795#10092#11887
15K → 20K50881-831#11887#12718
20K → Half1759-42#12718#12760
Half → 25K76470-394#12760#13154
25K → 30K721118-1046#13154#14200
30K → 20M102135-33#14200#14233
20M → 21M15384+69#14233#14164
21M → 35K6964+5#14164#14159
35K → 23M22226+196#14159#13963
23M → 24M14534+111#13963#13852
24M → 40K10557+48#13852#13804
40K → 25.2M4222+20#13804#13784
25.2M → Finish6671-5#13784#13789
TOTALS11855647-4464
📊

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