Boston Marathon logo
BOSTON MARATHON 2025

James Harris

Bib: 12011•M

MD

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Masters (Masters Men)
#0 / 10463
Top 35%
Division (M45-49)
#0 / 2386
Top 50%
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
7:17/mi
22:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
45:28
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:08:36
↑ 67↓ 78
20K· 12.43 mi
7:29/mi
1:31:51
↑ 106↓ 860.1%
Half· 13.11 mi
7:18/mi
1:36:50
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:55:07
↑ 66↓ 880.2%
30K· 18.64 mi
7:44/mi
2:19:08
↑ 181↓ 1480.2%
20M
7:52/mi
2:29:49
↑ 64↓ 500.2%
21M
8:18/mi
2:38:07
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:43:45
↑ 17↓ 861.7%
23M
7:50/mi
2:53:34
↑ 23↓ 630.6%
24M
7:29/mi
3:01:03
↓ 821.3%
40K· 24.85 mi
7:38/mi
3:07:35
↓ 200.3%
25.2M
8:56/mi
3:10:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:16/mi
3:18:04
↑ 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
Time1:36:50
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:41:14
Pace7:43 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1522:397:1722:39
7:17
-
10K
6.21 mi11:13:0445:287:1922:49
7:21
+0:04
15K
9.32 mi11:36:121:08:367:2223:08
7:27
+0:06
20K
12.43 mi11:59:271:31:517:2323:15
7:29
+0:02
Half
13.11 mi12:04:261:36:507:234:59
7:18
-0:11
25K
15.53 mi12:22:431:55:077:2518:17
7:32
+0:14
30K
18.64 mi12:46:442:19:087:2824:01
7:44
+0:12
20M
20.00 mi12:57:252:29:497:2910:41
7:52
+0:08
21M
21.00 mi13:05:432:38:077:328:18
8:18
+0:26
35K
21.75 mi13:11:212:43:457:325:38
7:32
-0:46
23M
23.00 mi13:21:102:53:347:339:49
7:50
+0:18
24M
24.00 mi13:28:393:01:037:337:29
7:29
-0:21
40K
24.85 mi13:35:113:07:357:336:32
7:38
+0:09
25.2M
25.20 mi13:38:163:10:407:343:05
8:56
+1:18
Finish
26.22 mi13:45:403:18:047:347:24
7:16
-1:40

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

7:16 /mi

Average Pace

7:34 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

35:02

18% of race

Time at Steady Pace

2:11:09

66% of race

Time at Slower Pace

31:53

16% of race

Average Pace: 7:33 /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 mi10:50:1522:397:1722:39
7:17
#10249
10K
6.21 mi11:13:0445:287:1922:49
7:21
#10471
15K
9.32 mi11:36:121:08:367:2223:08
7:27
#10714
20K
12.43 mi11:59:271:31:517:2323:15
7:29
#10672
Half
13.11 mi12:04:261:36:507:234:59
7:18
#10630
25K
15.53 mi12:22:431:55:077:2518:17
7:32
#10546
30K
18.64 mi12:46:442:19:087:2824:01
7:44
#10260
20M
20.00 mi12:57:252:29:497:2910:41
7:52
#10152
21M
21.00 mi13:05:432:38:077:328:18
8:18
#10080
35K
21.75 mi13:11:212:43:457:325:38
7:32
#9992
23M
23.00 mi13:21:102:53:347:339:49
7:50
#9910
24M
24.00 mi13:28:393:01:037:337:29
7:29
#9755
40K
24.85 mi13:35:113:07:357:336:32
7:38
#9627
25.2M
25.20 mi13:38:163:10:407:343:05
8:56
#9651
Finish
26.22 mi13:45:403:18:047:347:24
7:16
#9540
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi102498296829611279(Top 40%)8725(Top 54%)8725(Top 366%)
10K6.21 mi3.10 mi10471-2228405-1098405-10910686(Top 38%)8505(Top 53%)8505(Top 356%)
15K9.32 mi3.11 mi10714-2438497-928497-9211279(Top 40%)8725(Top 54%)8725(Top 366%)
20K12.43 mi3.11 mi10672+428461+368461+3610602(Top 37%)8308(Top 52%)8308(Top 348%)
Half13.11 mi0.68 mi10630+428441+208441+209977(Top 35%)7999(Top 50%)7999(Top 335%)
25K15.53 mi2.42 mi10546+848365+768365+7610284(Top 36%)8026(Top 50%)8026(Top 336%)
30K18.64 mi3.11 mi10260+2868150+2158150+2159397(Top 33%)7370(Top 46%)7370(Top 309%)
20M20.00 mi1.36 mi10152+1088064+868064+869438(Top 33%)7229(Top 45%)7229(Top 303%)
21M21.00 mi1.00 mi10080+727977+877977+879200(Top 32%)6930(Top 43%)6930(Top 290%)
35K21.75 mi0.75 mi9992+887901+767901+768823(Top 31%)6754(Top 42%)6754(Top 283%)
23M23.00 mi1.25 mi9910+827815+867815+868855(Top 31%)6643(Top 41%)6643(Top 278%)
24M24.00 mi1.00 mi9755+1557706+1097706+1097567(Top 27%)5856(Top 36%)5856(Top 245%)
40K24.85 mi0.85 mi9627+1287608+987608+987696(Top 27%)5834(Top 36%)5834(Top 245%)
25.2M25.20 mi0.35 mi9651-247604+47604+411392(Top 40%)7652(Top 48%)7652(Top 321%)
Finish26.22 mi1.02 mi9540+1117500+1047500+1047496(Top 26%)5629(Top 35%)5629(Top 236%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11279

Males

8725

M45-49

8725

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10686

Males

8505

M45-49

8505

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11279

Males

8725

M45-49

8725

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10602

Males

8308

M45-49

8308

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9977

Males

7999

M45-49

7999

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10284

Males

8026

M45-49

8026

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9397

Males

7370

M45-49

7370

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9438

Males

7229

M45-49

7229

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

9200

Males

6930

M45-49

6930

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8823

Males

6754

M45-49

6754

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8855

Males

6643

M45-49

6643

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7567

Males

5856

M45-49

5856

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7696

Males

5834

M45-49

5834

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11392

Males

7652

M45-49

7652

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

7496

Males

5629

M45-49

5629

Passing Analysis

Category:
Athletes Passed
2132
Passed By
1421
Net Change
+709
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10249
5K → 10K173395-222#10249#10471
10K → 15K103346-243#10471#10714
15K → 20K186144+42#10714#10672
20K → Half5816+42#10672#10630
Half → 25K206122+84#10630#10546
25K → 30K36174+286#10546#10260
30K → 20M16961+108#10260#10152
20M → 21M14573+72#10152#10080
21M → 35K11022+88#10080#9992
35K → 23M14259+82#9992#9910
23M → 24M16914+155#9910#9755
24M → 40K14315+128#9755#9627
40K → 25.2M2852-24#9627#9651
25.2M → Finish13928+111#9651#9540
TOTALS21321421+709
📊

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