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BOSTON MARATHON 2025

James Roessling

Bib: 14615•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:19
Rank: #15047
Start → 5K
7:50/mi
24:19 split
10K· 6.21 mi
49:23
Rank: #16080 (-1033)
5K → 10K
8:04/mi
25:04 split
15K· 9.32 mi
1:14:48
Rank: #16516 (-436)
10K → 15K
8:11/mi
25:25 split
20K· 12.43 mi
1:41:04
Rank: #16918 (-402)
15K → 20K
8:27/mi
26:16 split
Half· 13.11 mi
1:46:49
Rank: #17002 (-84)
20K → Half
8:26/mi
5:45 split
25K· 15.53 mi
2:08:11
Rank: #17283 (-281)
Half → 25K
8:49/mi
21:22 split
30K· 18.64 mi
2:36:56
Rank: #17587 (-304)
25K → 30K
9:15/mi
28:45 split
20M
2:49:31
Rank: #17609 (-22)
30K → 20M
9:16/mi
12:35 split
21M
2:59:38
Rank: #17718 (-109)
20M → 21M
10:07/mi
10:07 split
35K· 21.75 mi
3:06:26
Rank: #17748 (-30)
21M → 35K
9:05/mi
6:48 split
23M
3:18:16
Rank: #17781 (-33)
35K → 23M
9:27/mi
11:50 split
24M
3:27:24
Rank: #17779 (+2)
23M → 24M
9:08/mi
9:08 split
40K· 24.85 mi
3:35:18
Rank: #17774 (+5)
24M → 40K
9:14/mi
7:54 split
25.2M
3:38:52
Rank: #17785 (-11)
40K → 25.2M
10:21/mi
3:34 split
Finish· 26.22 mi
3:48:32
Rank: #17965 (-180)
25.2M → Finish
9:29/mi
9:40 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:49
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time2:01:43
Pace9:17 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2524:197:5024:19
7:50
-
10K
6.21 mi11:21:2949:237:5725:04
8:04
+0:14
15K
9.32 mi11:46:541:14:488:0225:25
8:11
+0:07
20K
12.43 mi12:13:101:41:048:0826:16
8:27
+0:16
Half
13.11 mi12:18:551:46:498:095:45
8:26
-0:01
25K
15.53 mi12:40:172:08:118:1521:22
8:49
+0:23
30K
18.64 mi13:09:022:36:568:2528:45
9:15
+0:26
20M
20.00 mi13:21:372:49:318:2912:35
9:16
+0:01
21M
21.00 mi13:31:442:59:388:3310:07
10:07
+0:51
35K
21.75 mi13:38:323:06:268:346:48
9:05
-1:02
23M
23.00 mi13:50:223:18:168:3711:50
9:27
+0:22
24M
24.00 mi13:59:303:27:248:399:08
9:08
-0:19
40K
24.85 mi14:07:243:35:188:407:54
9:14
+0:06
25.2M
25.20 mi14:10:583:38:528:413:34
10:21
+1:07
Finish
26.22 mi14:20:383:48:328:439:40
9:29
-0:52

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

7:50 /mi

Average Pace

8:43 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:49

47% of race

Time at Steady Pace

1:38:22

43% of race

Time at Slower Pace

23:21

10% of race

Average Pace: 8:43 /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 mi10:56:2524:197:5024:19
7:50
#15047
10K
6.21 mi11:21:2949:237:5725:04
8:04
#16080
15K
9.32 mi11:46:541:14:488:0225:25
8:11
#16516
20K
12.43 mi12:13:101:41:048:0826:16
8:27
#16918
Half
13.11 mi12:18:551:46:498:095:45
8:26
#17002
25K
15.53 mi12:40:172:08:118:1521:22
8:49
#17283
30K
18.64 mi13:09:022:36:568:2528:45
9:15
#17587
20M
20.00 mi13:21:372:49:318:2912:35
9:16
#17609
21M
21.00 mi13:31:442:59:388:3310:07
10:07
#17718
35K
21.75 mi13:38:323:06:268:346:48
9:05
#17748
23M
23.00 mi13:50:223:18:168:3711:50
9:27
#17781
24M
24.00 mi13:59:303:27:248:399:08
9:08
#17779
40K
24.85 mi14:07:243:35:188:407:54
9:14
#17774
25.2M
25.20 mi14:10:583:38:528:413:34
10:21
#17785
Finish
26.22 mi14:20:383:48:328:439:40
9:29
#17965
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15047104471044717267(Top 61%)11336(Top 70%)11336(Top 568%)
10K6.21 mi3.10 mi16080-103310842-39510842-39516969(Top 60%)11232(Top 70%)11232(Top 563%)
15K9.32 mi3.11 mi16516-43611028-18611028-18617267(Top 61%)11336(Top 70%)11336(Top 568%)
20K12.43 mi3.11 mi16918-40211176-14811176-14817904(Top 63%)11564(Top 72%)11564(Top 579%)
Half13.11 mi0.68 mi17002-8411203-2711203-2718694(Top 66%)11903(Top 74%)11903(Top 596%)
25K15.53 mi2.42 mi17283-28111299-9611299-9618980(Top 67%)11959(Top 74%)11959(Top 599%)
30K18.64 mi3.11 mi17587-30411361-6211361-6218905(Top 67%)11788(Top 73%)11788(Top 591%)
20M20.00 mi1.36 mi17609-2211351+1011351+1018078(Top 64%)11271(Top 70%)11271(Top 565%)
21M21.00 mi1.00 mi17718-10911388-3711388-3718711(Top 66%)11475(Top 71%)11475(Top 575%)
35K21.75 mi0.75 mi17748-3011391-311391-318634(Top 66%)11312(Top 70%)11312(Top 567%)
23M23.00 mi1.25 mi17781-3311355+3611355+3618449(Top 65%)11194(Top 70%)11194(Top 561%)
24M24.00 mi1.00 mi17779+211317+3811317+3818024(Top 63%)10935(Top 68%)10935(Top 548%)
40K24.85 mi0.85 mi17774+511302+1511302+1517523(Top 62%)10611(Top 66%)10611(Top 532%)
25.2M25.20 mi0.35 mi17785-1111298+411298+418413(Top 65%)11021(Top 68%)11021(Top 552%)
Finish26.22 mi1.02 mi17965-18011366-6811366-6821106(Top 74%)12339(Top 77%)12339(Top 618%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17267

Males

11336

M50-54

11336

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

16969

Males

11232

M50-54

11232

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17267

Males

11336

M50-54

11336

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17904

Males

11564

M50-54

11564

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18694

Males

11903

M50-54

11903

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

18980

Males

11959

M50-54

11959

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

18905

Males

11788

M50-54

11788

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18078

Males

11271

M50-54

11271

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18711

Males

11475

M50-54

11475

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

18634

Males

11312

M50-54

11312

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18449

Males

11194

M50-54

11194

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

18024

Males

10935

M50-54

10935

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17523

Males

10611

M50-54

10611

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18413

Males

11021

M50-54

11021

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

21106

Males

12339

M50-54

12339

Passing Analysis

Category:
Athletes Passed
1031
Passed By
3949
Net Change
-2918
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15047
5K → 10K721105-1033#15047#16080
10K → 15K91527-436#16080#16516
15K → 20K93495-402#16516#16918
20K → Half16100-84#16918#17002
Half → 25K88369-281#17002#17283
25K → 30K136440-304#17283#17587
30K → 20M109131-22#17587#17609
20M → 21M74183-109#17609#17718
21M → 35K5282-30#17718#17748
35K → 23M99132-33#17748#17781
23M → 24M8482+2#17781#17779
24M → 40K6257+5#17779#17774
40K → 25.2M3142-11#17774#17785
25.2M → Finish24204-180#17785#17965
TOTALS10313949-2918
📊

Passing Visuals

Category:
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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