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BOSTON MARATHON 2025

Sung Hua Ma

Bib: 14794•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
8:15/mi
25:38
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
51:13
↑ 79↓ 1380.4%
15K· 9.32 mi
8:31/mi
1:17:42
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:44:36
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:50:27
↑ 19↓ 370.5%
25K· 15.53 mi
9:03/mi
2:12:23
↑ 66↓ 880.2%
30K· 18.64 mi
9:40/mi
2:42:26
↑ 181↓ 1480.2%
20M
10:12/mi
2:56:17
↑ 64↓ 500.2%
21M
10:29/mi
3:06:46
↑ 106↓ 241.6%
35K· 21.75 mi
9:15/mi
3:13:41
↑ 17↓ 861.7%
23M
9:21/mi
3:25:24
↑ 23↓ 630.6%
24M
9:11/mi
3:34:35
↓ 821.3%
40K· 24.85 mi
9:05/mi
3:42:21
↓ 200.3%
25.2M
10:12/mi
3:45:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:38/mi
3:54:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:27
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time2:04:13
Pace9:29 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1825:388:1525:38
8:15
-
10K
6.21 mi11:20:5351:138:1525:35
8:14
-0:01
15K
9.32 mi11:47:221:17:428:2026:29
8:31
+0:17
20K
12.43 mi12:14:161:44:368:2526:54
8:39
+0:08
Half
13.11 mi12:20:071:50:278:265:51
8:34
-0:05
25K
15.53 mi12:42:032:12:238:3121:56
9:03
+0:29
30K
18.64 mi13:12:062:42:268:4330:03
9:40
+0:37
20M
20.00 mi13:25:572:56:178:4913:51
10:12
+0:32
21M
21.00 mi13:36:263:06:468:5410:29
10:29
+0:17
35K
21.75 mi13:43:213:13:418:546:55
9:15
-1:14
23M
23.00 mi13:55:043:25:248:5611:43
9:21
+0:06
24M
24.00 mi14:04:153:34:358:569:11
9:11
-0:10
40K
24.85 mi14:12:013:42:218:577:46
9:05
-0:06
25.2M
25.20 mi14:15:323:45:528:583:31
10:12
+1:07
Finish
26.22 mi14:24:203:54:408:578:48
8:38
-1:34

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

8:14 /mi

Average Pace

8:57 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:15

51% of race

Time at Steady Pace

57:31

25% of race

Time at Slower Pace

57:54

25% of race

Average Pace: 8:57 /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 mi10:55:1825:388:1525:38
8:15
#18420
10K
6.21 mi11:20:5351:138:1525:35
8:14
#18248
15K
9.32 mi11:47:221:17:428:2026:29
8:31
#18622
20K
12.43 mi12:14:161:44:368:2526:54
8:39
#18755
Half
13.11 mi12:20:071:50:278:265:51
8:34
#18809
25K
15.53 mi12:42:032:12:238:3121:56
9:03
#19044
30K
18.64 mi13:12:062:42:268:4330:03
9:40
#19387
20M
20.00 mi13:25:572:56:178:4913:51
10:12
#19632
21M
21.00 mi13:36:263:06:468:5410:29
10:29
#19672
35K
21.75 mi13:43:213:13:418:546:55
9:15
#19662
23M
23.00 mi13:55:043:25:248:5611:43
9:21
#19563
24M
24.00 mi14:04:153:34:358:569:11
9:11
#19514
40K
24.85 mi14:12:013:42:218:577:46
9:05
#19392
25.2M
25.20 mi14:15:323:45:528:583:31
10:12
#19354
Finish
26.22 mi14:24:203:54:408:578:48
8:38
#19274
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi18420117761177619466(Top 69%)12259(Top 76%)12259(Top 614%)
10K6.21 mi3.10 mi18248+17211716+6011716+6018129(Top 64%)11700(Top 73%)11700(Top 586%)
15K9.32 mi3.11 mi18622-37411877-16111877-16119466(Top 69%)12259(Top 76%)12259(Top 614%)
20K12.43 mi3.11 mi18755-13311942-6511942-6519187(Top 68%)12117(Top 75%)12117(Top 607%)
Half13.11 mi0.68 mi18809-5411956-1411956-1419641(Top 69%)12315(Top 76%)12315(Top 617%)
25K15.53 mi2.42 mi19044-23512046-9012046-9020102(Top 71%)12460(Top 77%)12460(Top 624%)
30K18.64 mi3.11 mi19387-34312154-10812154-10820603(Top 73%)12557(Top 78%)12557(Top 629%)
20M20.00 mi1.36 mi19632-24512238-8412238-8421539(Top 76%)12830(Top 80%)12830(Top 643%)
21M21.00 mi1.00 mi19672-4012230+812230+819936(Top 70%)12009(Top 75%)12009(Top 602%)
35K21.75 mi0.75 mi19662+1012212+1812212+1819333(Top 68%)11659(Top 72%)11659(Top 584%)
23M23.00 mi1.25 mi19563+9912135+7712135+7718039(Top 64%)10997(Top 68%)10997(Top 551%)
24M24.00 mi1.00 mi19514+4912091+4412091+4418267(Top 64%)11049(Top 69%)11049(Top 554%)
40K24.85 mi0.85 mi19392+12212020+7112020+7116767(Top 59%)10274(Top 64%)10274(Top 515%)
25.2M25.20 mi0.35 mi19354+3811992+2811992+2817859(Top 63%)10761(Top 67%)10761(Top 539%)
Finish26.22 mi1.02 mi19274+8011936+5611936+5617067(Top 60%)10432(Top 65%)10432(Top 523%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

19466

Males

12259

M50-54

12259

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18129

Males

11700

M50-54

11700

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

19466

Males

12259

M50-54

12259

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19187

Males

12117

M50-54

12117

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19641

Males

12315

M50-54

12315

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20102

Males

12460

M50-54

12460

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20603

Males

12557

M50-54

12557

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

21539

Males

12830

M50-54

12830

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19936

Males

12009

M50-54

12009

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19333

Males

11659

M50-54

11659

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18039

Males

10997

M50-54

10997

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18267

Males

11049

M50-54

11049

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16767

Males

10274

M50-54

10274

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17859

Males

10761

M50-54

10761

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

17067

Males

10432

M50-54

10432

Passing Analysis

Category:
Athletes Passed
1529
Passed By
2383
Net Change
-854
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18420
5K → 10K353181+172#18420#18248
10K → 15K75449-374#18248#18622
15K → 20K150283-133#18622#18755
20K → Half2175-54#18755#18809
Half → 25K110345-235#18809#19044
25K → 30K125468-343#19044#19387
30K → 20M42287-245#19387#19632
20M → 21M91131-40#19632#19672
21M → 35K4737+10#19672#19662
35K → 23M14243+99#19662#19563
23M → 24M8435+49#19563#19514
24M → 40K13311+122#19514#19392
40K → 25.2M5113+38#19392#19354
25.2M → Finish10525+80#19354#19274
TOTALS15292383-854
📊

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