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BOSTON MARATHON 2025

Gang Li

Bib: 10286•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:48
Rank: #16428
Start → 5K
24:48 | 7:59/mi
10K· 6.21 mi
49:31
Rank: #16242 (+186)
5K → 10K
24:43 | 7:57/mi
15K· 9.32 mi
1:14:25
Rank: #16203 (+39)
10K → 15K
24:54 | 8:01/mi
20K· 12.43 mi
1:39:36
Rank: #16045 (+158)
15K → 20K
25:11 | 8:06/mi
Half· 13.11 mi
1:45:09
Rank: #16100 (-55)
20K → Half
5:33 | 8:08/mi
25K· 15.53 mi
2:04:41
Rank: #15765 (+335)
Half → 25K
19:32 | 8:03/mi
30K· 18.64 mi
2:30:20
Rank: #15245 (+520)
25K → 30K
25:39 | 8:15/mi
20M
2:41:44
Rank: #15032 (+213)
30K → 20M
11:24 | 8:23/mi
21M
2:50:42
Rank: #14875 (+157)
20M → 21M
8:58 | 8:58/mi
35K· 21.75 mi
2:56:56
Rank: #14825 (+50)
21M → 35K
6:14 | 8:20/mi
23M
3:07:48
Rank: #14772 (+53)
35K → 23M
10:52 | 8:41/mi
24M
3:16:33
Rank: #14805 (-33)
23M → 24M
8:45 | 8:45/mi
40K· 24.85 mi
3:24:09
Rank: #14835 (-30)
24M → 40K
7:36 | 8:53/mi
25.2M
3:27:30
Rank: #14836 (-1)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:36:01
Rank: #14834 (+2)
25.2M → Finish
8:31 | 8:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:09
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:50:52
Pace8:27 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0824:487:5924:48
7:59
-
10K
6.21 mi11:15:5149:317:5824:43
7:57
-0:02
15K
9.32 mi11:40:451:14:257:5924:54
8:01
+0:04
20K
12.43 mi12:05:561:39:368:0125:11
8:06
+0:05
Half
13.11 mi12:11:291:45:098:015:33
8:08
+0:02
25K
15.53 mi12:31:012:04:418:0219:32
8:03
-0:05
30K
18.64 mi12:56:402:30:208:0425:39
8:15
+0:12
20M
20.00 mi13:08:042:41:448:0511:24
8:23
+0:08
21M
21.00 mi13:17:022:50:428:088:58
8:58
+0:35
35K
21.75 mi13:23:162:56:568:086:14
8:20
-0:38
23M
23.00 mi13:34:083:07:488:1010:52
8:41
+0:21
24M
24.00 mi13:42:533:16:338:118:45
8:45
+0:04
40K
24.85 mi13:50:293:24:098:137:36
8:53
+0:08
25.2M
25.20 mi13:53:503:27:308:143:21
9:43
+0:50
Finish
26.22 mi14:02:213:36:018:158:31
8:21
-1:22

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

7:57 /mi

Average Pace

8:15 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:57

43% of race

Time at Steady Pace

1:22:32

38% of race

Time at Slower Pace

39:32

18% of race

Average Pace: 8:14 /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 mi10:51:0824:487:5924:48
7:59
#16428
10K
6.21 mi11:15:5149:317:5824:43
7:57
#16242
15K
9.32 mi11:40:451:14:257:5924:54
8:01
#16203
20K
12.43 mi12:05:561:39:368:0125:11
8:06
#16045
Half
13.11 mi12:11:291:45:098:015:33
8:08
#16100
25K
15.53 mi12:31:012:04:418:0219:32
8:03
#15765
30K
18.64 mi12:56:402:30:208:0425:39
8:15
#15245
20M
20.00 mi13:08:042:41:448:0511:24
8:23
#15032
21M
21.00 mi13:17:022:50:428:088:58
8:58
#14875
35K
21.75 mi13:23:162:56:568:086:14
8:20
#14825
23M
23.00 mi13:34:083:07:488:1010:52
8:41
#14772
24M
24.00 mi13:42:533:16:338:118:45
8:45
#14805
40K
24.85 mi13:50:293:24:098:137:36
8:53
#14835
25.2M
25.20 mi13:53:503:27:308:143:21
9:43
#14836
Finish
26.22 mi14:02:213:36:018:158:31
8:21
#14834
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi16428109751097516139(Top 57%)10866(Top 67%)10866(Top 455%)
10K6.21 mi3.10 mi16242+18610902+7310902+7316097(Top 57%)10869(Top 67%)10869(Top 456%)
15K9.32 mi3.11 mi16203+3910901+110901+116139(Top 57%)10866(Top 67%)10866(Top 455%)
20K12.43 mi3.11 mi16045+15810818+8310818+8315670(Top 55%)10606(Top 66%)10606(Top 445%)
Half13.11 mi0.68 mi16100-5510839-2110839-2116789(Top 59%)11084(Top 69%)11084(Top 465%)
25K15.53 mi2.42 mi15765+33510685+15410685+15414313(Top 50%)9899(Top 61%)9899(Top 415%)
30K18.64 mi3.11 mi15245+52010404+28110404+28113200(Top 46%)9226(Top 57%)9226(Top 387%)
20M20.00 mi1.36 mi15032+21310266+13810266+13813066(Top 46%)9025(Top 56%)9025(Top 378%)
21M21.00 mi1.00 mi14875+15710179+8710179+8713299(Top 47%)9005(Top 56%)9005(Top 377%)
35K21.75 mi0.75 mi14825+5010145+3410145+3414446(Top 51%)9478(Top 59%)9478(Top 397%)
23M23.00 mi1.25 mi14772+5310088+5710088+5714404(Top 51%)9354(Top 58%)9354(Top 392%)
24M24.00 mi1.00 mi14805-3310074+1410074+1415990(Top 56%)10020(Top 62%)10020(Top 420%)
40K24.85 mi0.85 mi14835-3010056+1810056+1815660(Top 55%)9739(Top 60%)9739(Top 408%)
25.2M25.20 mi0.35 mi14836-110052+410052+415624(Top 55%)9690(Top 60%)9690(Top 406%)
Finish26.22 mi1.02 mi14834+210015+3710015+3715267(Top 54%)9597(Top 60%)9597(Top 402%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

16139

Males

10866

M45-49

10866

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

16097

Males

10869

M45-49

10869

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

16139

Males

10866

M45-49

10866

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15670

Males

10606

M45-49

10606

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16789

Males

11084

M45-49

11084

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

14313

Males

9899

M45-49

9899

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

13200

Males

9226

M45-49

9226

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

13066

Males

9025

M45-49

9025

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

13299

Males

9005

M45-49

9005

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14446

Males

9478

M45-49

9478

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

14404

Males

9354

M45-49

9354

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15990

Males

10020

M45-49

10020

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15660

Males

9739

M45-49

9739

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15624

Males

9690

M45-49

9690

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15267

Males

9597

M45-49

9597

Passing Analysis

Category:
Athletes Passed
2727
Passed By
1133
Net Change
+1594
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16428
5K → 10K390204+186#16428#16242
10K → 15K224185+39#16242#16203
15K → 20K284126+158#16203#16045
20K → Half1671-55#16045#16100
Half → 25K36025+335#16100#15765
25K → 30K56040+520#15765#15245
30K → 20M23724+213#15245#15032
20M → 21M19538+157#15032#14875
21M → 35K8333+50#14875#14825
35K → 23M14087+53#14825#14772
23M → 24M6598-33#14772#14805
24M → 40K5989-30#14805#14835
40K → 25.2M3435-1#14835#14836
25.2M → Finish8078+2#14836#14834
TOTALS27271133+1594
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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