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BOSTON MARATHON 2025

Brian Hsia

Bib: 10555•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 44%
Division (M40-44)
#0 / 2247
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
7:28/mi
23:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:14/mi
45:39
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:08:35
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:32:34
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:37:46
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
1:56:49
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:22:47
↑ 181↓ 1480.2%
20M
8:20/mi
2:34:06
↑ 64↓ 500.2%
21M
8:38/mi
2:42:44
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
2:48:48
↑ 17↓ 861.7%
23M
8:22/mi
2:59:16
↑ 23↓ 630.6%
24M
8:06/mi
3:07:22
↓ 821.3%
40K· 24.85 mi
8:22/mi
3:14:31
↓ 200.3%
25.2M
8:45/mi
3:17:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:29/mi
3:25:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:46
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:47:24
Pace8:12 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3223:127:2823:12
7:28
-
10K
6.21 mi11:14:5945:397:2122:27
7:14
-0:14
15K
9.32 mi11:37:551:08:357:2122:56
7:23
+0:09
20K
12.43 mi12:01:541:32:347:2723:59
7:43
+0:20
Half
13.11 mi12:07:061:37:467:275:12
7:37
-0:06
25K
15.53 mi12:26:091:56:497:3119:03
7:51
+0:14
30K
18.64 mi12:52:072:22:477:4025:58
8:21
+0:30
20M
20.00 mi13:03:262:34:067:4211:19
8:20
-0:01
21M
21.00 mi13:12:042:42:447:458:38
8:38
+0:18
35K
21.75 mi13:18:082:48:487:466:04
8:07
-0:31
23M
23.00 mi13:28:362:59:167:4810:28
8:22
+0:15
24M
24.00 mi13:36:423:07:227:488:06
8:06
-0:16
40K
24.85 mi13:43:513:14:317:507:09
8:22
+0:16
25.2M
25.20 mi13:46:523:17:327:503:01
8:45
+0:23
Finish
26.22 mi13:54:303:25:107:507:38
7:29
-1:16

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

7:14 /mi

Average Pace

7:50 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:27

61% of race

Time at Steady Pace

14:10

7% of race

Time at Slower Pace

1:06:33

32% of race

Average Pace: 7:49 /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 mi10:52:3223:127:2823:12
7:28
#11938
10K
6.21 mi11:14:5945:397:2122:27
7:14
#10739
15K
9.32 mi11:37:551:08:357:2122:56
7:23
#10702
20K
12.43 mi12:01:541:32:347:2723:59
7:43
#11211
Half
13.11 mi12:07:061:37:467:275:12
7:37
#11292
25K
15.53 mi12:26:091:56:497:3119:03
7:51
#11498
30K
18.64 mi12:52:072:22:477:4025:58
8:21
#11899
20M
20.00 mi13:03:262:34:067:4211:19
8:20
#11956
21M
21.00 mi13:12:042:42:447:458:38
8:38
#11872
35K
21.75 mi13:18:082:48:487:466:04
8:07
#11903
23M
23.00 mi13:28:362:59:167:4810:28
8:22
#11921
24M
24.00 mi13:36:423:07:227:488:06
8:06
#11897
40K
24.85 mi13:43:513:14:317:507:09
8:22
#11909
25.2M
25.20 mi13:46:523:17:327:503:01
8:45
#11877
Finish
26.22 mi13:54:303:25:107:507:38
7:29
#11729
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi119389144914410685(Top 38%)8445(Top 52%)8445(Top 376%)
10K6.21 mi3.10 mi10739+11998534+6108534+6109701(Top 34%)7992(Top 50%)7992(Top 356%)
15K9.32 mi3.11 mi10702+378492+428492+4210685(Top 38%)8445(Top 52%)8445(Top 376%)
20K12.43 mi3.11 mi11211-5098726-2348726-23412578(Top 44%)9227(Top 57%)9227(Top 411%)
Half13.11 mi0.68 mi11292-818764-388764-3812679(Top 45%)9302(Top 58%)9302(Top 414%)
25K15.53 mi2.42 mi11498-2068817-538817-5312791(Top 45%)9194(Top 57%)9194(Top 409%)
30K18.64 mi3.11 mi11899-4018924-1078924-10713868(Top 49%)9533(Top 59%)9533(Top 424%)
20M20.00 mi1.36 mi11956-578917+78917+712647(Top 45%)8835(Top 55%)8835(Top 393%)
21M21.00 mi1.00 mi11872+848836+818836+8111269(Top 40%)8013(Top 50%)8013(Top 357%)
35K21.75 mi0.75 mi11903-318831+58831+512951(Top 46%)8775(Top 54%)8775(Top 391%)
23M23.00 mi1.25 mi11921-188797+348797+3412399(Top 44%)8416(Top 52%)8416(Top 375%)
24M24.00 mi1.00 mi11897+248753+448753+4411875(Top 42%)8101(Top 50%)8101(Top 361%)
40K24.85 mi0.85 mi11909-128712+418712+4112507(Top 44%)8277(Top 51%)8277(Top 368%)
25.2M25.20 mi0.35 mi11877+328684+288684+2810268(Top 36%)7092(Top 44%)7092(Top 316%)
Finish26.22 mi1.02 mi11729+1488578+1068578+1069111(Top 32%)6505(Top 40%)6505(Top 289%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10685

Males

8445

M40-44

8445

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9701

Males

7992

M40-44

7992

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10685

Males

8445

M40-44

8445

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12578

Males

9227

M40-44

9227

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12679

Males

9302

M40-44

9302

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12791

Males

9194

M40-44

9194

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13868

Males

9533

M40-44

9533

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12647

Males

8835

M40-44

8835

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11269

Males

8013

M40-44

8013

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12951

Males

8775

M40-44

8775

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

12399

Males

8416

M40-44

8416

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11875

Males

8101

M40-44

8101

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12507

Males

8277

M40-44

8277

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10268

Males

7092

M40-44

7092

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

9111

Males

6505

M40-44

6505

Passing Analysis

Category:
Athletes Passed
2504
Passed By
2295
Net Change
+209
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11938
5K → 10K122021+1199#11938#10739
10K → 15K178141+37#10739#10702
15K → 20K72581-509#10702#11211
20K → Half1596-81#11211#11292
Half → 25K107313-206#11292#11498
25K → 30K136537-401#11498#11899
30K → 20M100157-57#11899#11956
20M → 21M14258+84#11956#11872
21M → 35K4677-31#11872#11903
35K → 23M104122-18#11903#11921
23M → 24M8561+24#11921#11897
24M → 40K8597-12#11897#11909
40K → 25.2M5422+32#11909#11877
25.2M → Finish16012+148#11877#11729
TOTALS25042295+209
📊

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