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BOSTON MARATHON 2025

James Chisholm

Bib: 4568•M

OH

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0:00
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 15%
Division (M18-39)
#0 / 5642
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:23
Rank: #839
Start → 5K
18:23 | 5:55/mi
10K· 6.21 mi
36:53
Rank: #908 (-69)
5K → 10K
18:30 | 5:57/mi
15K· 9.32 mi
55:05
Rank: #818 (+90)
10K → 15K
18:12 | 5:51/mi
20K· 12.43 mi
1:13:29
Rank: #773 (+45)
15K → 20K
18:24 | 5:55/mi
Half· 13.11 mi
1:17:35
Rank: #791 (-18)
20K → Half
4:06 | 6:01/mi
25K· 15.53 mi
1:32:07
Rank: #770 (+21)
Half → 25K
14:32 | 6:00/mi
30K· 18.64 mi
1:51:15
Rank: #758 (+12)
25K → 30K
19:08 | 6:10/mi
20M
1:59:56
Rank: #767 (-9)
30K → 20M
8:41 | 6:23/mi
21M
2:06:41
Rank: #770 (-3)
20M → 21M
6:45 | 6:45/mi
35K· 21.75 mi
2:12:33
Rank: #904 (-134)
21M → 35K
5:52 | 7:51/mi
23M
2:23:03
Rank: #1242 (-338)
35K → 23M
10:30 | 8:23/mi
24M
2:32:45
Rank: #1819 (-577)
23M → 24M
9:42 | 9:42/mi
40K· 24.85 mi
2:40:53
Rank: #2277 (-458)
24M → 40K
8:08 | 9:31/mi
25.2M
2:44:09
Rank: #2420 (-143)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
2:51:58
Rank: #2630 (-210)
25.2M → Finish
7:49 | 7:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:35
Pace5:55 /mi
2nd Half
Distance13.11 mi
Time1:34:23
Pace7:12 /mi
📊Positive Split: 21.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3118:235:5518:23
5:55
-
10K
6.21 mi10:40:0136:535:5618:30
5:57
+0:02
15K
9.32 mi10:58:1355:055:5518:12
5:51
-0:06
20K
12.43 mi11:16:371:13:295:5518:24
5:55
+0:04
Half
13.11 mi11:20:431:17:355:554:06
6:01
+0:06
25K
15.53 mi11:35:151:32:075:5614:32
6:00
-0:01
30K
18.64 mi11:54:231:51:155:5819:08
6:10
+0:10
20M
20.00 mi12:03:041:59:566:008:41
6:23
+0:13
21M
21.00 mi12:09:492:06:416:026:45
6:45
+0:22
35K
21.75 mi12:15:412:12:336:065:52
7:51
+1:06
23M
23.00 mi12:26:112:23:036:1310:30
8:23
+0:32
24M
24.00 mi12:35:532:32:456:229:42
9:42
+1:19
40K
24.85 mi12:44:012:40:536:288:08
9:31
-0:11
25.2M
25.20 mi12:47:172:44:096:313:16
9:28
-0:03
Finish
26.22 mi12:55:062:51:586:347:49
7:40
-1:48

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

5:51 /mi

Average Pace

6:34 /mi

Slowest Pace

9:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:06:41

74% of race

Time at Slower Pace

45:17

26% of race

Average Pace: 6:34 /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 mi10:21:3118:235:5518:23
5:55
#839
10K
6.21 mi10:40:0136:535:5618:30
5:57
#908
15K
9.32 mi10:58:1355:055:5518:12
5:51
#818
20K
12.43 mi11:16:371:13:295:5518:24
5:55
#773
Half
13.11 mi11:20:431:17:355:554:06
6:01
#791
25K
15.53 mi11:35:151:32:075:5614:32
6:00
#770
30K
18.64 mi11:54:231:51:155:5819:08
6:10
#758
20M
20.00 mi12:03:041:59:566:008:41
6:23
#767
21M
21.00 mi12:09:492:06:416:026:45
6:45
#770
35K
21.75 mi12:15:412:12:336:065:52
7:51
#904
23M
23.00 mi12:26:112:23:036:1310:30
8:23
#1242
24M
24.00 mi12:35:532:32:456:229:42
9:42
#1819
40K
24.85 mi12:44:012:40:536:288:08
9:31
#2277
25.2M
25.20 mi12:47:172:44:096:313:16
9:28
#2420
Finish
26.22 mi12:55:062:51:586:347:49
7:40
#2630
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi839785785650(Top 2%)604(Top 4%)604(Top 11%)
10K6.21 mi3.10 mi908-69853-68853-68982(Top 3%)927(Top 6%)927(Top 16%)
15K9.32 mi3.11 mi818+90766+87766+87650(Top 2%)604(Top 4%)604(Top 11%)
20K12.43 mi3.11 mi773+45723+43723+43676(Top 2%)629(Top 4%)629(Top 11%)
Half13.11 mi0.68 mi791-18740-17740-171218(Top 4%)1155(Top 7%)1155(Top 20%)
25K15.53 mi2.42 mi770+21721+19721+19787(Top 3%)739(Top 5%)739(Top 13%)
30K18.64 mi3.11 mi758+12710+11710+11816(Top 3%)765(Top 5%)765(Top 14%)
20M20.00 mi1.36 mi767-9718-8718-81230(Top 4%)1161(Top 7%)1161(Top 21%)
21M21.00 mi1.00 mi770-3720-2720-21386(Top 5%)1312(Top 8%)1312(Top 23%)
35K21.75 mi0.75 mi904-134849-129849-12911070(Top 39%)7881(Top 49%)7881(Top 140%)
23M23.00 mi1.25 mi1242-3381169-3201169-32012556(Top 44%)8487(Top 53%)8487(Top 150%)
24M24.00 mi1.00 mi1819-5771723-5541723-55420351(Top 72%)12026(Top 75%)12026(Top 213%)
40K24.85 mi0.85 mi2277-4582164-4412164-44118722(Top 66%)11179(Top 69%)11179(Top 198%)
25.2M25.20 mi0.35 mi2420-1432297-1332297-13314329(Top 50%)9058(Top 56%)9058(Top 161%)
Finish26.22 mi1.02 mi2630-2102489-1922489-19210435(Top 37%)7205(Top 45%)7205(Top 128%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

650

Males

604

M18-39

604

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

982

Males

927

M18-39

927

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

650

Males

604

M18-39

604

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

676

Males

629

M18-39

629

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1218

Males

1155

M18-39

1155

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

787

Males

739

M18-39

739

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

816

Males

765

M18-39

765

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1230

Males

1161

M18-39

1161

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1386

Males

1312

M18-39

1312

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

11070

Males

7881

M18-39

7881

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

12556

Males

8487

M18-39

8487

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20351

Males

12026

M18-39

12026

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18722

Males

11179

M18-39

11179

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14329

Males

9058

M18-39

9058

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

10435

Males

7205

M18-39

7205

Passing Analysis

Category:
Athletes Passed
285
Passed By
2076
Net Change
-1791
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#839
5K → 10K2392-69#839#908
10K → 15K933+90#908#818
15K → 20K505+45#818#773
20K → Half321-18#773#791
Half → 25K3413+21#791#770
25K → 30K3725+12#770#758
30K → 20M1827-9#758#767
20M → 21M1316-3#767#770
21M → 35K4138-134#770#904
35K → 23M2340-338#904#1242
23M → 24M0577-577#1242#1819
24M → 40K3461-458#1819#2277
40K → 25.2M2145-143#2277#2420
25.2M → Finish3213-210#2420#2630
TOTALS2852076-1791
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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