Boston Marathon logo
BOSTON MARATHON 2025

Jos Lalor

Bib: 10012•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 25%
Division (M45-49)
#0 / 2386
Top 35%
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
6:59/mi
21:41
↑ 97↓ 3451.5%
10K· 6.21 mi
6:56/mi
43:15
↑ 79↓ 1380.4%
15K· 9.32 mi
7:01/mi
1:05:04
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:27:24
↑ 106↓ 860.1%
Half· 13.11 mi
6:56/mi
1:32:08
↑ 19↓ 370.5%
25K· 15.53 mi
7:12/mi
1:49:35
↑ 66↓ 880.2%
30K· 18.64 mi
7:24/mi
2:12:35
↑ 181↓ 1480.2%
20M
8:21/mi
2:23:56
↑ 64↓ 500.2%
21M
8:03/mi
2:31:59
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:37:14
↑ 17↓ 861.7%
23M
7:27/mi
2:46:34
↑ 23↓ 630.6%
24M
7:12/mi
2:53:46
↓ 821.3%
40K· 24.85 mi
7:27/mi
3:00:08
↓ 200.3%
25.2M
8:22/mi
3:03:01
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:10:35
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:08
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:38:27
Pace7:31 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4021:416:5921:41
6:59
-
10K
6.21 mi11:09:1443:156:5821:34
6:56
-0:03
15K
9.32 mi11:31:031:05:046:5921:49
7:01
+0:05
20K
12.43 mi11:53:231:27:247:0222:20
7:11
+0:10
Half
13.11 mi11:58:071:32:087:024:44
6:56
-0:15
25K
15.53 mi12:15:341:49:357:0317:27
7:12
+0:16
30K
18.64 mi12:38:342:12:357:0723:00
7:24
+0:12
20M
20.00 mi12:49:552:23:567:1211:21
8:21
+0:57
21M
21.00 mi12:57:582:31:597:148:03
8:03
-0:18
35K
21.75 mi13:03:132:37:147:145:15
7:01
-1:02
23M
23.00 mi13:12:332:46:347:159:20
7:27
+0:26
24M
24.00 mi13:19:452:53:467:147:12
7:12
-0:15
40K
24.85 mi13:26:073:00:087:156:22
7:27
+0:15
25.2M
25.20 mi13:29:003:03:017:162:53
8:22
+0:55
Finish
26.22 mi13:36:343:10:357:167:34
7:26
-0:56

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

6:56 /mi

Average Pace

7:16 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

26:18

14% of race

Time at Steady Pace

2:06:18

66% of race

Time at Slower Pace

37:59

20% of race

Average Pace: 7:16 /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 mi10:47:4021:416:5921:41
6:59
#7649
10K
6.21 mi11:09:1443:156:5821:34
6:56
#7585
15K
9.32 mi11:31:031:05:046:5921:49
7:01
#7625
20K
12.43 mi11:53:231:27:247:0222:20
7:11
#7706
Half
13.11 mi11:58:071:32:087:024:44
6:56
#7668
25K
15.53 mi12:15:341:49:357:0317:27
7:12
#7612
30K
18.64 mi12:38:342:12:357:0723:00
7:24
#7429
20M
20.00 mi12:49:552:23:567:1211:21
8:21
#7721
21M
21.00 mi12:57:582:31:597:148:03
8:03
#7656
35K
21.75 mi13:03:132:37:147:145:15
7:01
#7530
23M
23.00 mi13:12:332:46:347:159:20
7:27
#7395
24M
24.00 mi13:19:452:53:467:147:12
7:12
#7268
40K
24.85 mi13:26:073:00:087:156:22
7:27
#7196
25.2M
25.20 mi13:29:003:03:017:162:53
8:22
#7198
Finish
26.22 mi13:36:343:10:357:167:34
7:26
#7221
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7649675967597758(Top 27%)6783(Top 42%)6783(Top 284%)
10K6.21 mi3.10 mi7585+646712+476712+477538(Top 27%)6666(Top 41%)6666(Top 279%)
15K9.32 mi3.11 mi7625-406724-126724-127758(Top 27%)6783(Top 42%)6783(Top 284%)
20K12.43 mi3.11 mi7706-816768-446768-448085(Top 28%)6919(Top 43%)6919(Top 290%)
Half13.11 mi0.68 mi7668+386737+316737+317115(Top 25%)6292(Top 39%)6292(Top 264%)
25K15.53 mi2.42 mi7612+566682+556682+557566(Top 27%)6482(Top 40%)6482(Top 272%)
30K18.64 mi3.11 mi7429+1836517+1656517+1657056(Top 25%)6007(Top 37%)6007(Top 252%)
20M20.00 mi1.36 mi7721-2926672-1556672-15512807(Top 45%)8902(Top 55%)8902(Top 373%)
21M21.00 mi1.00 mi7656+656586+866586+867606(Top 27%)6024(Top 37%)6024(Top 252%)
35K21.75 mi0.75 mi7530+1266477+1096477+1095449(Top 19%)4689(Top 29%)4689(Top 197%)
23M23.00 mi1.25 mi7395+1356354+1236354+1236359(Top 22%)5190(Top 32%)5190(Top 218%)
24M24.00 mi1.00 mi7268+1276238+1166238+1165810(Top 20%)4798(Top 30%)4798(Top 201%)
40K24.85 mi0.85 mi7196+726165+736165+736456(Top 23%)5112(Top 32%)5112(Top 214%)
25.2M25.20 mi0.35 mi7198-26157+86157+87886(Top 28%)5827(Top 36%)5827(Top 244%)
Finish26.22 mi1.02 mi7221-236145+126145+128642(Top 30%)6248(Top 39%)6248(Top 262%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7758

Males

6783

M45-49

6783

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7538

Males

6666

M45-49

6666

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7758

Males

6783

M45-49

6783

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

8085

Males

6919

M45-49

6919

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

7115

Males

6292

M45-49

6292

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7566

Males

6482

M45-49

6482

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

7056

Males

6007

M45-49

6007

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12807

Males

8902

M45-49

8902

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7606

Males

6024

M45-49

6024

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5449

Males

4689

M45-49

4689

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

6359

Males

5190

M45-49

5190

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5810

Males

4798

M45-49

4798

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6456

Males

5112

M45-49

5112

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7886

Males

5827

M45-49

5827

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8642

Males

6248

M45-49

6248

Passing Analysis

Category:
Athletes Passed
1680
Passed By
1252
Net Change
+428
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7649
5K → 10K230166+64#7649#7585
10K → 15K121161-40#7585#7625
15K → 20K112193-81#7625#7706
20K → Half479+38#7706#7668
Half → 25K13478+56#7668#7612
25K → 30K26683+183#7612#7429
30K → 20M40332-292#7429#7721
20M → 21M13368+65#7721#7656
21M → 35K1304+126#7656#7530
35K → 23M16025+135#7530#7395
23M → 24M14215+127#7395#7268
24M → 40K9321+72#7268#7196
40K → 25.2M2830-2#7196#7198
25.2M → Finish4467-23#7198#7221
TOTALS16801252+428
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing