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BOSTON MARATHON 2025

Bo Huang

Bib: 10670•M

MB

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 38%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 40%
Division (M55-59)
#0 / 1648
Top 23%
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
7:13/mi
22:24
↑ 97↓ 3451.5%
10K· 6.21 mi
7:04/mi
44:22
↑ 79↓ 1380.4%
15K· 9.32 mi
7:08/mi
1:06:33
↑ 67↓ 78
20K· 12.43 mi
7:21/mi
1:29:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:34:22
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:52:12
↑ 66↓ 880.2%
30K· 18.64 mi
7:46/mi
2:16:21
↑ 181↓ 1480.2%
20M
8:03/mi
2:27:18
↑ 64↓ 500.2%
21M
8:45/mi
2:36:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
2:42:07
↑ 17↓ 861.7%
23M
8:36/mi
2:52:53
↑ 23↓ 630.6%
24M
8:41/mi
3:01:34
↓ 821.3%
40K· 24.85 mi
8:51/mi
3:09:08
↓ 200.3%
25.2M
10:21/mi
3:12:42
↑ 13↓ 160.2%
Finish· 26.22 mi
9:20/mi
3:22:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:22
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:47:51
Pace8:14 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5222:247:1322:24
7:13
-
10K
6.21 mi11:10:5044:227:0821:58
7:04
-0:09
15K
9.32 mi11:33:011:06:337:0822:11
7:08
+0:04
20K
12.43 mi11:55:501:29:227:1122:49
7:21
+0:13
Half
13.11 mi12:00:501:34:227:125:00
7:20
-0:01
25K
15.53 mi12:18:401:52:127:1317:50
7:21
+0:01
30K
18.64 mi12:42:492:16:217:1924:09
7:46
+0:25
20M
20.00 mi12:53:462:27:187:2210:57
8:03
+0:17
21M
21.00 mi13:02:312:36:037:268:45
8:45
+0:42
35K
21.75 mi13:08:352:42:077:276:04
8:07
-0:38
23M
23.00 mi13:19:212:52:537:3110:46
8:36
+0:29
24M
24.00 mi13:28:023:01:347:348:41
8:41
+0:05
40K
24.85 mi13:35:363:09:087:377:34
8:51
+0:10
25.2M
25.20 mi13:39:103:12:427:393:34
10:21
+1:30
Finish
26.22 mi13:48:413:22:137:439:31
9:20
-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

7:04 /mi

Average Pace

7:43 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:12

55% of race

Time at Steady Pace

41:10

20% of race

Time at Slower Pace

48:51

24% of race

Average Pace: 7:43 /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 mi10:48:5222:247:1322:24
7:13
#9537
10K
6.21 mi11:10:5044:227:0821:58
7:04
#8941
15K
9.32 mi11:33:011:06:337:0822:11
7:08
#8836
20K
12.43 mi11:55:501:29:227:1122:49
7:21
#8904
Half
13.11 mi12:00:501:34:227:125:00
7:20
#8966
25K
15.53 mi12:18:401:52:127:1317:50
7:21
#8885
30K
18.64 mi12:42:492:16:217:1924:09
7:46
#8967
20M
20.00 mi12:53:462:27:187:2210:57
8:03
#9103
21M
21.00 mi13:02:312:36:037:268:45
8:45
#9237
35K
21.75 mi13:08:352:42:077:276:04
8:07
#9369
23M
23.00 mi13:19:212:52:537:3110:46
8:36
#9644
24M
24.00 mi13:28:023:01:347:348:41
8:41
#9926
40K
24.85 mi13:35:363:09:087:377:34
8:51
#10156
25.2M
25.20 mi13:39:103:12:427:393:34
10:21
#10321
Finish
26.22 mi13:48:413:22:137:439:31
9:20
#10796
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi9537791479148627(Top 30%)7332(Top 46%)7332(Top 445%)
10K6.21 mi3.10 mi8941+5967558+3567558+3568421(Top 30%)7245(Top 45%)7245(Top 440%)
15K9.32 mi3.11 mi8836+1057492+667492+668627(Top 30%)7332(Top 46%)7332(Top 445%)
20K12.43 mi3.11 mi8904-687508-167508-169396(Top 33%)7682(Top 48%)7682(Top 466%)
Half13.11 mi0.68 mi8966-627543-357543-3510229(Top 36%)8145(Top 51%)8145(Top 494%)
25K15.53 mi2.42 mi8885+817465+787465+788784(Top 31%)7219(Top 45%)7219(Top 438%)
30K18.64 mi3.11 mi8967-827444+217444+219726(Top 34%)7549(Top 47%)7549(Top 458%)
20M20.00 mi1.36 mi9103-1367499-557499-5510813(Top 38%)7947(Top 49%)7947(Top 482%)
21M21.00 mi1.00 mi9237-1347534-357534-3511950(Top 42%)8346(Top 52%)8346(Top 506%)
35K21.75 mi0.75 mi9369-1327581-477581-4712945(Top 46%)8769(Top 54%)8769(Top 532%)
23M23.00 mi1.25 mi9644-2757696-1157696-11513892(Top 49%)9107(Top 57%)9107(Top 553%)
24M24.00 mi1.00 mi9926-2827797-1017797-10115605(Top 55%)9864(Top 61%)9864(Top 599%)
40K24.85 mi0.85 mi10156-2307874-777874-7715422(Top 54%)9609(Top 60%)9609(Top 583%)
25.2M25.20 mi0.35 mi10321-1657945-717945-7118371(Top 65%)10979(Top 68%)10979(Top 666%)
Finish26.22 mi1.02 mi10796-4758138-1938138-19320513(Top 72%)12054(Top 75%)12054(Top 731%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8627

Males

7332

M55-59

7332

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8421

Males

7245

M55-59

7245

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8627

Males

7332

M55-59

7332

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

9396

Males

7682

M55-59

7682

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

10229

Males

8145

M55-59

8145

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8784

Males

7219

M55-59

7219

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9726

Males

7549

M55-59

7549

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10813

Males

7947

M55-59

7947

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11950

Males

8346

M55-59

8346

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12945

Males

8769

M55-59

8769

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13892

Males

9107

M55-59

9107

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15605

Males

9864

M55-59

9864

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15422

Males

9609

M55-59

9609

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18371

Males

10979

M55-59

10979

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

20513

Males

12054

M55-59

12054

Passing Analysis

Category:
Athletes Passed
1689
Passed By
2946
Net Change
-1259
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9537
5K → 10K63943+596#9537#8941
10K → 15K222117+105#8941#8836
15K → 20K152220-68#8836#8904
20K → Half2082-62#8904#8966
Half → 25K188107+81#8966#8885
25K → 30K190272-82#8885#8967
30K → 20M70206-136#8967#9103
20M → 21M55189-134#9103#9237
21M → 35K27159-132#9237#9369
35K → 23M47322-275#9369#9644
23M → 24M32314-282#9644#9926
24M → 40K34262-230#9926#10156
40K → 25.2M5170-165#10156#10321
25.2M → Finish8483-475#10321#10796
TOTALS16892946-1259
📊

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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Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

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Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing