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BOSTON MARATHON 2025

William Liu

Bib: 24169•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
Top 42%
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
8:46/mi
27:13
↑ 97↓ 3451.5%
10K· 6.21 mi
9:01/mi
55:14
↑ 79↓ 1380.4%
15K· 9.32 mi
8:57/mi
1:23:02
↑ 67↓ 78
20K· 12.43 mi
9:06/mi
1:51:19
↑ 106↓ 860.1%
Half· 13.11 mi
9:08/mi
1:57:33
↑ 19↓ 370.5%
25K· 15.53 mi
9:12/mi
2:19:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:36/mi
2:49:39
↑ 181↓ 1480.2%
20M
8:56/mi
3:01:48
↑ 64↓ 500.2%
21M
10:22/mi
3:12:10
↑ 106↓ 241.6%
35K· 21.75 mi
10:28/mi
3:20:00
↑ 17↓ 861.7%
23M
9:05/mi
3:31:22
↑ 23↓ 630.6%
24M
8:42/mi
3:40:04
↓ 821.3%
40K· 24.85 mi
9:04/mi
3:47:49
↓ 200.3%
25.2M
10:21/mi
3:51:23
↑ 13↓ 160.2%
Finish· 26.22 mi
8:52/mi
4:00:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:33
Pace8:58 /mi
2nd Half
Distance13.11 mi
Time2:02:52
Pace9:22 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:5127:138:4627:13
8:46
-
10K
6.21 mi11:53:5255:148:5328:01
9:01
+0:15
15K
9.32 mi12:21:401:23:028:5527:48
8:57
-0:04
20K
12.43 mi12:49:571:51:198:5728:17
9:06
+0:09
Half
13.11 mi12:56:111:57:338:586:14
9:08
+0:02
25K
15.53 mi13:18:292:19:519:0022:18
9:12
+0:04
30K
18.64 mi13:48:172:49:399:0629:48
9:36
+0:24
20M
20.00 mi14:00:263:01:489:0512:09
8:56
-0:40
21M
21.00 mi14:10:483:12:109:0910:22
10:22
+1:26
35K
21.75 mi14:18:383:20:009:127:50
10:28
+0:06
23M
23.00 mi14:30:003:31:229:1111:22
9:05
-1:23
24M
24.00 mi14:38:423:40:049:108:42
8:42
-0:23
40K
24.85 mi14:46:273:47:499:107:45
9:04
+0:22
25.2M
25.20 mi14:50:013:51:239:113:34
10:21
+1:17
Finish
26.22 mi14:59:034:00:259:119:02
8:52
-1:29

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

8:42 /mi

Average Pace

9:11 /mi

Slowest Pace

10:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

35:55

15% of race

Time at Steady Pace

2:32:56

64% of race

Time at Slower Pace

51:34

21% of race

Average Pace: 9:10 /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 mi11:25:5127:138:4627:13
8:46
#21299
10K
6.21 mi11:53:5255:148:5328:01
9:01
#21904
15K
9.32 mi12:21:401:23:028:5527:48
8:57
#21851
20K
12.43 mi12:49:571:51:198:5728:17
9:06
#21741
Half
13.11 mi12:56:111:57:338:586:14
9:08
#21773
25K
15.53 mi13:18:292:19:519:0022:18
9:12
#21560
30K
18.64 mi13:48:172:49:399:0629:48
9:36
#21338
20M
20.00 mi14:00:263:01:489:0512:09
8:56
#20978
21M
21.00 mi14:10:483:12:109:0910:22
10:22
#20879
35K
21.75 mi14:18:383:20:009:127:50
10:28
#21011
23M
23.00 mi14:30:003:31:229:1111:22
9:05
#20780
24M
24.00 mi14:38:423:40:049:108:42
8:42
#20592
40K
24.85 mi14:46:273:47:499:107:45
9:04
#20475
25.2M
25.20 mi14:50:013:51:239:113:34
10:21
#20468
Finish
26.22 mi14:59:034:00:259:119:02
8:52
#20415
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi21299129961299621781(Top 77%)13296(Top 83%)13296(Top 2081%)
10K6.21 mi3.10 mi21904-60513293-29713293-29722448(Top 79%)13549(Top 84%)13549(Top 2120%)
15K9.32 mi3.11 mi21851+5313272+2113272+2121781(Top 77%)13296(Top 83%)13296(Top 2081%)
20K12.43 mi3.11 mi21741+11013222+5013222+5021447(Top 76%)13101(Top 81%)13101(Top 2050%)
Half13.11 mi0.68 mi21773-3213234-1213234-1222326(Top 79%)13463(Top 84%)13463(Top 2107%)
25K15.53 mi2.42 mi21560+21313140+9413140+9420743(Top 73%)12745(Top 79%)12745(Top 1995%)
30K18.64 mi3.11 mi21338+22213009+13113009+13120313(Top 72%)12433(Top 77%)12433(Top 1946%)
20M20.00 mi1.36 mi20978+36012838+17112838+17116475(Top 58%)10577(Top 66%)10577(Top 1655%)
21M21.00 mi1.00 mi20879+9912768+7012768+7019593(Top 69%)11864(Top 74%)11864(Top 1857%)
35K21.75 mi0.75 mi21011-13212817-4912817-4923086(Top 81%)13426(Top 83%)13426(Top 2101%)
23M23.00 mi1.25 mi20780+23112682+13512682+13516700(Top 59%)10390(Top 65%)10390(Top 1626%)
24M24.00 mi1.00 mi20592+18812579+10312579+10315747(Top 55%)9943(Top 62%)9943(Top 1556%)
40K24.85 mi0.85 mi20475+11712513+6612513+6616685(Top 59%)10237(Top 64%)10237(Top 1602%)
25.2M25.20 mi0.35 mi20468+712501+1212501+1218437(Top 65%)11045(Top 69%)11045(Top 1728%)
Finish26.22 mi1.02 mi20415+5312461+4012461+4018359(Top 65%)11049(Top 69%)11049(Top 1729%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21781

Males

13296

M65-69

13296

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22448

Males

13549

M65-69

13549

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21781

Males

13296

M65-69

13296

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21447

Males

13101

M65-69

13101

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22326

Males

13463

M65-69

13463

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20743

Males

12745

M65-69

12745

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20313

Males

12433

M65-69

12433

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

16475

Males

10577

M65-69

10577

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

19593

Males

11864

M65-69

11864

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

23086

Males

13426

M65-69

13426

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16700

Males

10390

M65-69

10390

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15747

Males

9943

M65-69

9943

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16685

Males

10237

M65-69

10237

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18437

Males

11045

M65-69

11045

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

18359

Males

11049

M65-69

11049

Passing Analysis

Category:
Athletes Passed
2341
Passed By
1457
Net Change
+884
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21299
5K → 10K84689-605#21299#21904
10K → 15K228175+53#21904#21851
15K → 20K243133+110#21851#21741
20K → Half2759-32#21741#21773
Half → 25K25441+213#21773#21560
25K → 30K30987+222#21560#21338
30K → 20M3600+360#21338#20978
20M → 21M14748+99#20978#20879
21M → 35K31163-132#20879#21011
35K → 23M2343+231#21011#20780
23M → 24M1913+188#20780#20592
24M → 40K12811+117#20592#20475
40K → 25.2M2215+7#20475#20468
25.2M → Finish8330+53#20468#20415
TOTALS23411457+884
📊

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