Boston Marathon logo
BOSTON MARATHON 2025

Jeff Lambert

Bib: 1209•M

QC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
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
20:32
Rank: #4666
Start → 5K
20:32 | 6:37/mi
10K· 6.21 mi
41:05
Rank: #4593 (+73)
5K → 10K
20:33 | 6:37/mi
15K· 9.32 mi
1:01:45
Rank: #4581 (+12)
10K → 15K
20:40 | 6:39/mi
20K· 12.43 mi
1:22:39
Rank: #4554 (+27)
15K → 20K
20:54 | 6:44/mi
Half· 13.11 mi
1:27:08
Rank: #4536 (+18)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:43:43
Rank: #4593 (-57)
Half → 25K
16:35 | 6:50/mi
30K· 18.64 mi
2:05:25
Rank: #4551 (+42)
25K → 30K
21:42 | 6:59/mi
20M
2:15:09
Rank: #4576 (-25)
30K → 20M
9:44 | 7:10/mi
21M
2:22:39
Rank: #4552 (+24)
20M → 21M
7:30 | 7:30/mi
35K· 21.75 mi
2:27:51
Rank: #4544 (+8)
21M → 35K
5:12 | 6:57/mi
23M
2:36:58
Rank: #4575 (-31)
35K → 23M
9:07 | 7:17/mi
24M
2:44:07
Rank: #4613 (-38)
23M → 24M
7:09 | 7:09/mi
40K· 24.85 mi
2:50:19
Rank: #4636 (-23)
24M → 40K
6:12 | 7:15/mi
25.2M
2:53:10
Rank: #4690 (-54)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:00:09
Rank: #4718 (-28)
25.2M → Finish
6:59 | 6:51/mi

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
Time1:27:08
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:33:01
Pace7:06 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1420:326:3720:32
6:37
-
10K
6.21 mi10:41:4741:056:3720:33
6:37
0:00
15K
9.32 mi11:02:271:01:456:3820:40
6:39
+0:02
20K
12.43 mi11:23:211:22:396:3920:54
6:44
+0:05
Half
13.11 mi11:27:501:27:086:394:29
6:34
-0:10
25K
15.53 mi11:44:251:43:436:4116:35
6:50
+0:16
30K
18.64 mi12:06:072:05:256:4421:42
6:59
+0:09
20M
20.00 mi12:15:512:15:096:459:44
7:10
+0:11
21M
21.00 mi12:23:212:22:396:487:30
7:30
+0:20
35K
21.75 mi12:28:332:27:516:485:12
6:57
-0:33
23M
23.00 mi12:37:402:36:586:499:07
7:17
+0:20
24M
24.00 mi12:44:492:44:076:507:09
7:09
-0:08
40K
24.85 mi12:51:012:50:196:516:12
7:15
+0:06
25.2M
25.20 mi12:53:522:53:106:522:51
8:16
+1:01
Finish
26.22 mi13:00:513:00:096:536:59
6:51
-1:25

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

6:34 /mi

Average Pace

6:53 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:08

48% of race

Time at Steady Pace

57:37

32% of race

Time at Slower Pace

35:24

20% of race

Average Pace: 6:52 /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 mi10:21:1420:326:3720:32
6:37
#4666
10K
6.21 mi10:41:4741:056:3720:33
6:37
#4593
15K
9.32 mi11:02:271:01:456:3820:40
6:39
#4581
20K
12.43 mi11:23:211:22:396:3920:54
6:44
#4554
Half
13.11 mi11:27:501:27:086:394:29
6:34
#4536
25K
15.53 mi11:44:251:43:436:4116:35
6:50
#4593
30K
18.64 mi12:06:072:05:256:4421:42
6:59
#4551
20M
20.00 mi12:15:512:15:096:459:44
7:10
#4576
21M
21.00 mi12:23:212:22:396:487:30
7:30
#4552
35K
21.75 mi12:28:332:27:516:485:12
6:57
#4544
23M
23.00 mi12:37:402:36:586:499:07
7:17
#4575
24M
24.00 mi12:44:492:44:076:507:09
7:09
#4613
40K
24.85 mi12:51:012:50:196:516:12
7:15
#4636
25.2M
25.20 mi12:53:522:53:106:522:51
8:16
#4690
Finish
26.22 mi13:00:513:00:096:536:59
6:51
#4718
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4666437543754651(Top 16%)4352(Top 27%)4352(Top 77%)
10K6.21 mi3.10 mi4593+734309+664309+664579(Top 16%)4289(Top 27%)4289(Top 76%)
15K9.32 mi3.11 mi4581+124296+134296+134651(Top 16%)4352(Top 27%)4352(Top 77%)
20K12.43 mi3.11 mi4554+274263+334263+334659(Top 16%)4321(Top 27%)4321(Top 77%)
Half13.11 mi0.68 mi4536+184247+164247+164147(Top 15%)3886(Top 24%)3886(Top 69%)
25K15.53 mi2.42 mi4593-574288-414288-415175(Top 18%)4741(Top 29%)4741(Top 84%)
30K18.64 mi3.11 mi4551+424240+484240+484596(Top 16%)4193(Top 26%)4193(Top 74%)
20M20.00 mi1.36 mi4576-254246-64246-64973(Top 18%)4458(Top 28%)4458(Top 79%)
21M21.00 mi1.00 mi4552+244222+244222+244593(Top 16%)4063(Top 25%)4063(Top 72%)
35K21.75 mi0.75 mi4544+84210+124210+125008(Top 18%)4375(Top 27%)4375(Top 78%)
23M23.00 mi1.25 mi4575-314219-94219-95319(Top 19%)4530(Top 28%)4530(Top 80%)
24M24.00 mi1.00 mi4613-384247-284247-285481(Top 19%)4578(Top 28%)4578(Top 81%)
40K24.85 mi0.85 mi4636-234258-114258-115309(Top 19%)4410(Top 27%)4410(Top 78%)
25.2M25.20 mi0.35 mi4690-544298-404298-407318(Top 26%)5483(Top 34%)5483(Top 97%)
Finish26.22 mi1.02 mi4718-284318-204318-204787(Top 17%)3971(Top 25%)3971(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4651

Males

4352

M18-39

4352

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4579

Males

4289

M18-39

4289

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4651

Males

4352

M18-39

4352

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4659

Males

4321

M18-39

4321

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4147

Males

3886

M18-39

3886

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5175

Males

4741

M18-39

4741

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4596

Males

4193

M18-39

4193

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4973

Males

4458

M18-39

4458

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4593

Males

4063

M18-39

4063

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5008

Males

4375

M18-39

4375

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5319

Males

4530

M18-39

4530

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5481

Males

4578

M18-39

4578

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5309

Males

4410

M18-39

4410

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7318

Males

5483

M18-39

5483

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4787

Males

3971

M18-39

3971

Passing Analysis

Category:
Athletes Passed
1137
Passed By
1189
Net Change
-52
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4666
5K → 10K208135+73#4666#4593
10K → 15K10795+12#4593#4581
15K → 20K129102+27#4581#4554
20K → Half2810+18#4554#4536
Half → 25K98155-57#4536#4593
25K → 30K166124+42#4593#4551
30K → 20M6590-25#4551#4576
20M → 21M8460+24#4576#4552
21M → 35K4739+8#4552#4544
35K → 23M6192-31#4544#4575
23M → 24M5694-38#4575#4613
24M → 40K4669-23#4613#4636
40K → 25.2M1569-54#4636#4690
25.2M → Finish2755-28#4690#4718
TOTALS11371189-52
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing