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BOSTON MARATHON 2025

Adam Liu

Bib: 28217•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:15
Rank: #22816
Start → 5K
28:15 | 9:06/mi
10K· 6.21 mi
54:41
Rank: #21449 (+1367)
5K → 10K
26:26 | 8:30/mi
15K· 9.32 mi
1:21:17
Rank: #20847 (+602)
10K → 15K
26:36 | 8:34/mi
20K· 12.43 mi
1:47:51
Rank: #20284 (+563)
15K → 20K
26:34 | 8:33/mi
Half· 13.11 mi
1:53:39
Rank: #20234 (+50)
20K → Half
5:48 | 8:30/mi
25K· 15.53 mi
2:14:57
Rank: #19988 (+246)
Half → 25K
21:18 | 8:47/mi
30K· 18.64 mi
2:43:23
Rank: #19677 (+311)
25K → 30K
28:26 | 9:09/mi
20M
2:56:41
Rank: #19734 (-57)
30K → 20M
13:18 | 9:47/mi
21M
3:07:30
Rank: #19845 (-111)
20M → 21M
10:49 | 10:49/mi
35K· 21.75 mi
3:14:39
Rank: #19874 (-29)
21M → 35K
7:09 | 9:33/mi
23M
3:26:56
Rank: #19899 (-25)
35K → 23M
12:17 | 9:49/mi
24M
3:36:34
Rank: #19915 (-16)
23M → 24M
9:38 | 9:38/mi
40K· 24.85 mi
3:44:50
Rank: #19905 (+10)
24M → 40K
8:16 | 9:40/mi
25.2M
3:48:28
Rank: #19890 (+15)
40K → 25.2M
3:38 | 10:32/mi
Finish· 26.22 mi
3:58:08
Rank: #19964 (-74)
25.2M → Finish
9:40 | 9:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:39
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time2:04:29
Pace9:30 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2028:159:0628:15
9:06
-
10K
6.21 mi12:19:4654:418:4826:26
8:30
-0:36
15K
9.32 mi12:46:221:21:178:4326:36
8:34
+0:04
20K
12.43 mi13:12:561:47:518:4126:34
8:33
-0:01
Half
13.11 mi13:18:441:53:398:405:48
8:30
-0:03
25K
15.53 mi13:40:022:14:578:4121:18
8:47
+0:17
30K
18.64 mi14:08:282:43:238:4628:26
9:09
+0:22
20M
20.00 mi14:21:462:56:418:5013:18
9:47
+0:38
21M
21.00 mi14:32:353:07:308:5610:49
10:49
+1:02
35K
21.75 mi14:39:443:14:398:577:09
9:33
-1:16
23M
23.00 mi14:52:013:26:569:0012:17
9:49
+0:16
24M
24.00 mi15:01:393:36:349:019:38
9:38
-0:11
40K
24.85 mi15:09:553:44:509:038:16
9:40
+0:02
25.2M
25.20 mi15:13:333:48:289:043:38
10:32
+0:52
Finish
26.22 mi15:23:133:58:089:059:40
9:29
-1:03

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

8:30 /mi

Average Pace

9:05 /mi

Slowest Pace

10:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:57

57% of race

Time at Steady Pace

1:28:44

37% of race

Time at Slower Pace

14:27

6% of race

Average Pace: 9:05 /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 mi11:53:2028:159:0628:15
9:06
#22816
10K
6.21 mi12:19:4654:418:4826:26
8:30
#21449
15K
9.32 mi12:46:221:21:178:4326:36
8:34
#20847
20K
12.43 mi13:12:561:47:518:4126:34
8:33
#20284
Half
13.11 mi13:18:441:53:398:405:48
8:30
#20234
25K
15.53 mi13:40:022:14:578:4121:18
8:47
#19988
30K
18.64 mi14:08:282:43:238:4628:26
9:09
#19677
20M
20.00 mi14:21:462:56:418:5013:18
9:47
#19734
21M
21.00 mi14:32:353:07:308:5610:49
10:49
#19845
35K
21.75 mi14:39:443:14:398:577:09
9:33
#19874
23M
23.00 mi14:52:013:26:569:0012:17
9:49
#19899
24M
24.00 mi15:01:393:36:349:019:38
9:38
#19915
40K
24.85 mi15:09:553:44:509:038:16
9:40
#19905
25.2M
25.20 mi15:13:333:48:289:043:38
10:32
#19890
Finish
26.22 mi15:23:133:58:089:059:40
9:29
#19964
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22816136731367319697(Top 69%)12370(Top 77%)12370(Top 219%)
10K6.21 mi3.10 mi21449+136713082+59113082+59119843(Top 70%)12406(Top 77%)12406(Top 220%)
15K9.32 mi3.11 mi20847+60212835+24712835+24719697(Top 69%)12370(Top 77%)12370(Top 219%)
20K12.43 mi3.11 mi20284+56312589+24612589+24618543(Top 65%)11843(Top 74%)11843(Top 210%)
Half13.11 mi0.68 mi20234+5012560+2912560+2919184(Top 68%)12132(Top 75%)12132(Top 215%)
25K15.53 mi2.42 mi19988+24612457+10312457+10318844(Top 66%)11899(Top 74%)11899(Top 211%)
30K18.64 mi3.11 mi19677+31112285+17212285+17218416(Top 65%)11577(Top 72%)11577(Top 205%)
20M20.00 mi1.36 mi19734-5712288-312288-320246(Top 71%)12256(Top 76%)12256(Top 217%)
21M21.00 mi1.00 mi19845-11112309-2112309-2120884(Top 74%)12438(Top 77%)12438(Top 220%)
35K21.75 mi0.75 mi19874-2912308+112308+120503(Top 72%)12207(Top 76%)12207(Top 216%)
23M23.00 mi1.25 mi19899-2512280+2812280+2819818(Top 70%)11818(Top 73%)11818(Top 209%)
24M24.00 mi1.00 mi19915-1612259+2112259+2120117(Top 71%)11924(Top 74%)11924(Top 211%)
40K24.85 mi0.85 mi19905+1012245+1412245+1419342(Top 68%)11489(Top 71%)11489(Top 204%)
25.2M25.20 mi0.35 mi19890+1512229+1612229+1619111(Top 67%)11369(Top 71%)11369(Top 202%)
Finish26.22 mi1.02 mi19964-7412247-1812247-1821114(Top 74%)12347(Top 77%)12347(Top 219%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19697

Males

12370

M18-39

12370

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19843

Males

12406

M18-39

12406

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19697

Males

12370

M18-39

12370

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

18543

Males

11843

M18-39

11843

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19184

Males

12132

M18-39

12132

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18844

Males

11899

M18-39

11899

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18416

Males

11577

M18-39

11577

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20246

Males

12256

M18-39

12256

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

20884

Males

12438

M18-39

12438

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20503

Males

12207

M18-39

12207

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19818

Males

11818

M18-39

11818

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

20117

Males

11924

M18-39

11924

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19342

Males

11489

M18-39

11489

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19111

Males

11369

M18-39

11369

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

21114

Males

12347

M18-39

12347

Passing Analysis

Category:
Athletes Passed
3788
Passed By
936
Net Change
+2852
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22816
5K → 10K13769+1367#22816#21449
10K → 15K62321+602#21449#20847
15K → 20K57613+563#20847#20284
20K → Half588+50#20284#20234
Half → 25K29347+246#20234#19988
25K → 30K39584+311#19988#19677
30K → 20M77134-57#19677#19734
20M → 21M66177-111#19734#19845
21M → 35K3867-29#19845#19874
35K → 23M83108-25#19874#19899
23M → 24M6278-16#19899#19915
24M → 40K7060+10#19915#19905
40K → 25.2M3419+15#19905#19890
25.2M → Finish37111-74#19890#19964
TOTALS3788936+2852
📊

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