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BOSTON MARATHON 2025

Liam Grady

Bib: 30532•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

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
8:51/mi
27:30
↑ 97↓ 3451.5%
10K· 6.21 mi
8:38/mi
54:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:21:01
↑ 67↓ 78
20K· 12.43 mi
8:35/mi
1:47:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:27/mi
1:53:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:14:40
↑ 66↓ 880.2%
30K· 18.64 mi
9:09/mi
2:43:06
↑ 181↓ 1480.2%
20M
8:51/mi
2:55:07
↑ 64↓ 500.2%
21M
9:36/mi
3:04:43
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:11:14
↑ 17↓ 861.7%
23M
9:03/mi
3:22:34
↑ 23↓ 630.6%
24M
8:55/mi
3:31:29
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:39:00
↓ 200.3%
25.2M
9:20/mi
3:42:13
↑ 13↓ 160.2%
Finish· 26.22 mi
7:44/mi
3:50:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:28
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time1:56:38
Pace8:54 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:3127:308:5127:30
8:51
-
10K
6.21 mi12:15:1954:188:4426:48
8:38
-0:13
15K
9.32 mi12:42:021:21:018:4226:43
8:36
-0:02
20K
12.43 mi13:08:431:47:428:4026:41
8:35
-0:01
Half
13.11 mi13:14:291:53:288:395:46
8:27
-0:08
25K
15.53 mi13:35:412:14:408:4021:12
8:45
+0:18
30K
18.64 mi14:04:072:43:068:4528:26
9:09
+0:24
20M
20.00 mi14:16:082:55:078:4512:01
8:51
-0:18
21M
21.00 mi14:25:443:04:438:489:36
9:36
+0:45
35K
21.75 mi14:32:153:11:148:486:31
8:43
-0:53
23M
23.00 mi14:43:353:22:348:4811:20
9:03
+0:20
24M
24.00 mi14:52:303:31:298:498:55
8:55
-0:08
40K
24.85 mi15:00:013:39:008:497:31
8:47
-0:08
25.2M
25.20 mi15:03:143:42:138:493:13
9:20
+0:33
Finish
26.22 mi15:11:073:50:068:477:53
7:44
-1:36

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

7:44 /mi

Average Pace

8:47 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:39

6% of race

Time at Steady Pace

2:43:52

71% of race

Time at Slower Pace

52:35

23% of race

Average Pace: 8:47 /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 mi11:48:3127:308:5127:30
8:51
#21755
10K
6.21 mi12:15:1954:188:4426:48
8:38
#21095
15K
9.32 mi12:42:021:21:018:4226:43
8:36
#20711
20K
12.43 mi13:08:431:47:428:4026:41
8:35
#20225
Half
13.11 mi13:14:291:53:288:395:46
8:27
#20147
25K
15.53 mi13:35:412:14:408:4021:12
8:45
#19879
30K
18.64 mi14:04:072:43:068:4528:26
9:09
#19592
20M
20.00 mi14:16:082:55:078:4512:01
8:51
#19322
21M
21.00 mi14:25:443:04:438:489:36
9:36
#19154
35K
21.75 mi14:32:153:11:148:486:31
8:43
#19070
23M
23.00 mi14:43:353:22:348:4811:20
9:03
#18909
24M
24.00 mi14:52:303:31:298:498:55
8:55
#18831
40K
24.85 mi15:00:013:39:008:497:31
8:47
#18690
25.2M
25.20 mi15:03:143:42:138:493:13
9:20
#18596
Finish
26.22 mi15:11:073:50:068:477:53
7:44
#18338
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21755132001320019910(Top 70%)12458(Top 77%)12458(Top 221%)
10K6.21 mi3.10 mi21095+66012932+26812932+26820468(Top 72%)12684(Top 79%)12684(Top 225%)
15K9.32 mi3.11 mi20711+38412785+14712785+14719910(Top 70%)12458(Top 77%)12458(Top 221%)
20K12.43 mi3.11 mi20225+48612562+22312562+22318772(Top 66%)11931(Top 74%)11931(Top 211%)
Half13.11 mi0.68 mi20147+7812531+3112531+3118853(Top 66%)11978(Top 74%)11978(Top 212%)
25K15.53 mi2.42 mi19879+26812411+12012411+12018630(Top 66%)11806(Top 73%)11806(Top 209%)
30K18.64 mi3.11 mi19592+28712245+16612245+16618408(Top 65%)11569(Top 72%)11569(Top 205%)
20M20.00 mi1.36 mi19322+27012103+14212103+14215898(Top 56%)10332(Top 64%)10332(Top 183%)
21M21.00 mi1.00 mi19154+16812013+9012013+9016537(Top 58%)10496(Top 65%)10496(Top 186%)
35K21.75 mi0.75 mi19070+8411956+5711956+5716741(Top 59%)10515(Top 65%)10515(Top 186%)
23M23.00 mi1.25 mi18909+16111858+9811858+9816541(Top 58%)10309(Top 64%)10309(Top 183%)
24M24.00 mi1.00 mi18831+7811801+5711801+5716917(Top 60%)10425(Top 65%)10425(Top 185%)
40K24.85 mi0.85 mi18690+14111710+9111710+9115135(Top 53%)9511(Top 59%)9511(Top 169%)
25.2M25.20 mi0.35 mi18596+9411657+5311657+5313599(Top 48%)8769(Top 54%)8769(Top 155%)
Finish26.22 mi1.02 mi18338+25811522+13511522+13510961(Top 39%)7500(Top 47%)7500(Top 133%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19910

Males

12458

M18-39

12458

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20468

Males

12684

M18-39

12684

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19910

Males

12458

M18-39

12458

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18772

Males

11931

M18-39

11931

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18853

Males

11978

M18-39

11978

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

18630

Males

11806

M18-39

11806

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

18408

Males

11569

M18-39

11569

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15898

Males

10332

M18-39

10332

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16537

Males

10496

M18-39

10496

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16741

Males

10515

M18-39

10515

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16541

Males

10309

M18-39

10309

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

16917

Males

10425

M18-39

10425

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15135

Males

9511

M18-39

9511

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13599

Males

8769

M18-39

8769

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10961

Males

7500

M18-39

7500

Passing Analysis

Category:
Athletes Passed
3788
Passed By
371
Net Change
+3417
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21755
5K → 10K72464+660#21755#21095
10K → 15K43551+384#21095#20711
15K → 20K50620+486#20711#20225
20K → Half846+78#20225#20147
Half → 25K30032+268#20147#19879
25K → 30K36881+287#19879#19592
30K → 20M2733+270#19592#19322
20M → 21M19830+168#19322#19154
21M → 35K10622+84#19154#19070
35K → 23M17817+161#19070#18909
23M → 24M10830+78#18909#18831
24M → 40K15211+141#18831#18690
40K → 25.2M962+94#18690#18596
25.2M → Finish2602+258#18596#18338
TOTALS3788371+3417
📊

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