Boston Marathon logo
BOSTON MARATHON 2025

Jacob Roberts

Bib: 1873•M

FL

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Division (M18-39)
#0 / 5642
Top 43%
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
6:06/mi
18:58
↑ 97↓ 3451.5%
10K· 6.21 mi
6:02/mi
37:42
↑ 79↓ 1380.4%
15K· 9.32 mi
6:05/mi
56:36
↑ 67↓ 78
20K· 12.43 mi
6:29/mi
1:16:46
↑ 106↓ 860.1%
Half· 13.11 mi
6:14/mi
1:21:01
↑ 19↓ 370.5%
25K· 15.53 mi
6:24/mi
1:36:31
↑ 66↓ 880.2%
30K· 18.64 mi
7:02/mi
1:58:22
↑ 181↓ 1480.2%
20M
7:03/mi
2:07:57
↑ 64↓ 500.2%
21M
7:32/mi
2:15:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:18/mi
2:20:57
↑ 17↓ 861.7%
23M
7:42/mi
2:30:35
↑ 23↓ 630.6%
24M
8:07/mi
2:38:42
↓ 821.3%
40K· 24.85 mi
8:07/mi
2:45:38
↓ 200.3%
25.2M
8:54/mi
2:48:42
↑ 13↓ 160.2%
Finish· 26.22 mi
6:55/mi
2:55:45
↑ 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
Time1:21:01
Pace6:11 /mi
2nd Half
Distance13.11 mi
Time1:34:44
Pace7:14 /mi
📊Positive Split: 16.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0218:586:0618:58
6:06
-
10K
6.21 mi10:38:4637:426:0418:44
6:02
-0:04
15K
9.32 mi10:57:4056:366:0418:54
6:05
+0:03
20K
12.43 mi11:17:501:16:466:1120:10
6:29
+0:24
Half
13.11 mi11:22:051:21:016:114:15
6:14
-0:15
25K
15.53 mi11:37:351:36:316:1315:30
6:24
+0:10
30K
18.64 mi11:59:261:58:226:2121:51
7:02
+0:38
20M
20.00 mi12:09:012:07:576:249:35
7:03
+0:01
21M
21.00 mi12:16:332:15:296:277:32
7:32
+0:29
35K
21.75 mi12:22:012:20:576:295:28
7:18
-0:14
23M
23.00 mi12:31:392:30:356:339:38
7:42
+0:24
24M
24.00 mi12:39:462:38:426:378:07
8:07
+0:25
40K
24.85 mi12:46:422:45:386:406:56
8:07
0:00
25.2M
25.20 mi12:49:462:48:426:423:04
8:54
+0:47
Finish
26.22 mi12:56:492:55:456:427:03
6:55
-1:59

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

6:02 /mi

Average Pace

6:42 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:31

55% of race

Time at Steady Pace

43:57

25% of race

Time at Slower Pace

35:17

20% of race

Average Pace: 6:42 /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 mi10:20:0218:586:0618:58
6:06
#1449
10K
6.21 mi10:38:4637:426:0418:44
6:02
#1300
15K
9.32 mi10:57:4056:366:0418:54
6:05
#1285
20K
12.43 mi11:17:501:16:466:1120:10
6:29
#1666
Half
13.11 mi11:22:051:21:016:114:15
6:14
#1677
25K
15.53 mi11:37:351:36:316:1315:30
6:24
#1757
30K
18.64 mi11:59:261:58:226:2121:51
7:02
#2182
20M
20.00 mi12:09:012:07:576:249:35
7:03
#2308
21M
21.00 mi12:16:332:15:296:277:32
7:32
#2395
35K
21.75 mi12:22:012:20:576:295:28
7:18
#2536
23M
23.00 mi12:31:392:30:356:339:38
7:42
#2777
24M
24.00 mi12:39:462:38:426:378:07
8:07
#3053
40K
24.85 mi12:46:422:45:386:406:56
8:07
#3284
25.2M
25.20 mi12:49:462:48:426:423:04
8:54
#3394
Finish
26.22 mi12:56:492:55:456:427:03
6:55
#3424
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1449138013801318(Top 5%)1251(Top 8%)1251(Top 22%)
10K6.21 mi3.10 mi1300+1491237+1431237+1431201(Top 4%)1138(Top 7%)1138(Top 20%)
15K9.32 mi3.11 mi1285+151221+161221+161318(Top 5%)1251(Top 8%)1251(Top 22%)
20K12.43 mi3.11 mi1666-3811582-3611582-3613082(Top 11%)2928(Top 18%)2928(Top 52%)
Half13.11 mi0.68 mi1677-111592-101592-102185(Top 8%)2089(Top 13%)2089(Top 37%)
25K15.53 mi2.42 mi1757-801670-781670-782347(Top 8%)2232(Top 14%)2232(Top 40%)
30K18.64 mi3.11 mi2182-4252079-4092079-4094898(Top 17%)4454(Top 28%)4454(Top 79%)
20M20.00 mi1.36 mi2308-1262202-1232202-1234415(Top 16%)4021(Top 25%)4021(Top 71%)
21M21.00 mi1.00 mi2395-872283-812283-814777(Top 17%)4211(Top 26%)4211(Top 75%)
35K21.75 mi0.75 mi2536-1412415-1322415-1327249(Top 26%)5833(Top 36%)5833(Top 103%)
23M23.00 mi1.25 mi2777-2412636-2212636-2217839(Top 28%)6061(Top 38%)6061(Top 107%)
24M24.00 mi1.00 mi3053-2762886-2502886-25011969(Top 42%)8135(Top 51%)8135(Top 144%)
40K24.85 mi0.85 mi3284-2313091-2053091-20510868(Top 38%)7478(Top 46%)7478(Top 133%)
25.2M25.20 mi0.35 mi3394-1103185-943185-9411096(Top 39%)7502(Top 47%)7502(Top 133%)
Finish26.22 mi1.02 mi3424-303203-183203-185203(Top 18%)4251(Top 26%)4251(Top 75%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21story building
+97ft-345ft

Overall

1318

Males

1251

M18-39

1251

5K→10K

3.1 - 6.2 mi

Top 4%
×5story building
+79ft-138ft

Overall

1201

Males

1138

M18-39

1138

10K→15K

6.2 - 9.3 mi

Top 5%
×3story building
+67ft-78ft

Overall

1318

Males

1251

M18-39

1251

15K→20K

9.3 - 12.4 mi

Top 11%
×5story building
+106ft-86ft

Overall

3082

Males

2928

M18-39

2928

20K→Half

12.4 - 13.1 mi

Top 8%
×2story building
+19ft-37ft

Overall

2185

Males

2089

M18-39

2089

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2347

Males

2232

M18-39

2232

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4898

Males

4454

M18-39

4454

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4415

Males

4021

M18-39

4021

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4777

Males

4211

M18-39

4211

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7249

Males

5833

M18-39

5833

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7839

Males

6061

M18-39

6061

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11969

Males

8135

M18-39

8135

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10868

Males

7478

M18-39

7478

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11096

Males

7502

M18-39

7502

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

5203

Males

4251

M18-39

4251

Passing Analysis

Category:
Athletes Passed
399
Passed By
2374
Net Change
-1975
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1449
5K → 10K16920+149#1449#1300
10K → 15K5338+15#1300#1285
15K → 20K8389-381#1285#1666
20K → Half718-11#1666#1677
Half → 25K31111-80#1677#1757
25K → 30K12437-425#1757#2182
30K → 20M17143-126#2182#2308
20M → 21M23110-87#2308#2395
21M → 35K10151-141#2395#2536
35K → 23M13254-241#2536#2777
23M → 24M6282-276#2777#3053
24M → 40K11242-231#3053#3284
40K → 25.2M3113-110#3284#3394
25.2M → Finish3666-30#3394#3424
TOTALS3992374-1975
📊

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