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BOSTON MARATHON 2025

Liam Casey

MA

Bib: 27497 M

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:59/mi
27:55
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:52/mi
52:20
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:48/mi
1:16:34
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:17/mi
1:42:19
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:43/mi
1:47:35
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:31/mi
2:08:15
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:47/mi
2:35:31
↑ 181↓ 1480.2%
138 ft elev
20M
9:19/mi
2:48:11
↑ 64↓ 500.2%
148 ft elev
21M
9:25/mi
2:57:36
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:28/mi
3:03:56
↑ 17↓ 861.7%
156 ft elev
23M
9:16/mi
3:15:32
↑ 23↓ 630.6%
116 ft elev
24M
9:02/mi
3:24:34
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:03/mi
3:32:18
↓ 200.3%
20 ft elev
25.2M
9:46/mi
3:35:40
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:19/mi
3:44:08
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:47:358:12 /mi⚡ faster
2nd Half
1:56:338:53 /mi+8.3%
Positive split — 8.3% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2127:558:5927:55
8:59
-
10K
6.21 mi12:08:4652:208:2524:25
7:52
-1:07
15K
9.32 mi12:33:001:16:348:1324:14
7:48
-0:04
20K
12.43 mi12:58:451:42:198:1425:45
8:17
+0:29
Half
13.11 mi13:04:011:47:358:125:16
7:43
-0:34
25K
15.53 mi13:24:412:08:158:1520:40
8:31
+0:48
30K
18.64 mi13:51:572:35:318:2127:16
8:47
+0:16
20M
20.00 mi14:04:372:48:118:2512:40
9:19
+0:32
21M
21.00 mi14:14:022:57:368:279:25
9:25
+0:06
35K
21.75 mi14:20:223:03:568:276:20
8:28
-0:57
23M
23.00 mi14:31:583:15:328:3011:36
9:16
+0:48
24M
24.00 mi14:41:003:24:348:319:02
9:02
-0:14
40K
24.85 mi14:48:443:32:188:327:44
9:03
+0:01
25.2M
25.20 mi14:52:063:35:408:333:22
9:46
+0:43
Finish
26.22 mi15:00:343:44:088:338:28
8:19
-1:27

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

7:43 /mi

Average Pace

8:33 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:34:28

42% of race

Time at Steady Pace

1:32:37

41% of race

Time at Slower Pace

37:03

17% of race

Average Pace: 8:33 /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 mi11:44:2127:558:5927:55
8:59
#22348
10K
6.21 mi12:08:4652:208:2524:25
7:52
#19373
15K
9.32 mi12:33:001:16:348:1324:14
7:48
#17850
20K
12.43 mi12:58:451:42:198:1425:45
8:17
#17567
Half
13.11 mi13:04:011:47:358:125:16
7:43
#17370
25K
15.53 mi13:24:412:08:158:1520:40
8:31
#17310
30K
18.64 mi13:51:572:35:318:2127:16
8:47
#17100
20M
20.00 mi14:04:372:48:118:2512:40
9:19
#17195
21M
21.00 mi14:14:022:57:368:279:25
9:25
#17073
35K
21.75 mi14:20:223:03:568:276:20
8:28
#16992
23M
23.00 mi14:31:583:15:328:3011:36
9:16
#17018
24M
24.00 mi14:41:003:24:348:319:02
9:02
#17054
40K
24.85 mi14:48:443:32:188:327:44
9:03
#17035
25.2M
25.20 mi14:52:063:35:408:333:22
9:46
#17006
Finish
26.22 mi15:00:343:44:088:338:28
8:19
#16942
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi223481345913459143671008210082
10K6.21 mi3.10 mi19373+297512211+124812211+1248153391055010550
15K9.32 mi3.11 mi17850+152311561+65011561+650143671008210082
20K12.43 mi3.11 mi17567+28311439+12211439+122168571111411114
Half13.11 mi0.68 mi17370+19711357+8211357+821354097289728
25K15.53 mi2.42 mi17310+6011314+4311314+43173311123911239
30K18.64 mi3.11 mi17100+21011174+14011174+140164541069510695
20M20.00 mi1.36 mi17195-9511181-711181-7183781138711387
21M21.00 mi1.00 mi17073+12211102+7911102+79156991010810108
35K21.75 mi0.75 mi16992+8111049+5311049+531523598349834
23M23.00 mi1.25 mi17018-2611025+2411025+24176121077110771
24M24.00 mi1.00 mi17054-3611018+711018+7175221070410704
40K24.85 mi0.85 mi17035+1910984+3410984+34165561017710177
25.2M25.20 mi0.35 mi17006+2910956+2810956+281587698139813
Finish26.22 mi1.02 mi16942+6410915+4110915+411495494649464

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14367

Males

10082

M18-39

10082

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15339

Males

10550

M18-39

10550

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14367

Males

10082

M18-39

10082

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16857

Males

11114

M18-39

11114

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13540

Males

9728

M18-39

9728

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17331

Males

11239

M18-39

11239

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16454

Males

10695

M18-39

10695

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18378

Males

11387

M18-39

11387

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

15699

Males

10108

M18-39

10108

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

15235

Males

9834

M18-39

9834

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17612

Males

10771

M18-39

10771

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17522

Males

10704

M18-39

10704

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16556

Males

10177

M18-39

10177

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15876

Males

9813

M18-39

9813

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

14954

Males

9464

M18-39

9464

Passing Analysis

Category:
Athletes Passed
6311
Passed By
905
Net Change
+5406
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22348
5K → 10K29750+2975#22348#19373
10K → 15K15252+1523#19373#17850
15K → 20K34057+283#17850#17567
20K → Half1981+197#17567#17370
Half → 25K198138+60#17370#17310
25K → 30K322112+210#17310#17100
30K → 20M71166-95#17100#17195
20M → 21M16947+122#17195#17073
21M → 35K11231+81#17073#16992
35K → 23M110136-26#16992#17018
23M → 24M70106-36#17018#17054
24M → 40K7657+19#17054#17035
40K → 25.2M4819+29#17035#17006
25.2M → Finish9733+64#17006#16942
TOTALS6311905+5406

Passing Charts

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