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BOSTON MARATHON 2025

Benson Karanja

Bib: 9696•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Masters (Masters Men)
#0 / 10463
Top 22%
Division (M50-54)
#0 / 1996
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:38
Rank: #4957
Start → 5K
20:38 | 6:38/mi
10K· 6.21 mi
41:18
Rank: #4905 (+52)
5K → 10K
20:40 | 6:39/mi
15K· 9.32 mi
1:01:54
Rank: #4726 (+179)
10K → 15K
20:36 | 6:38/mi
20K· 12.43 mi
1:23:25
Rank: #5106 (-380)
15K → 20K
21:31 | 6:56/mi
Half· 13.11 mi
1:28:00
Rank: #5111 (-5)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:45:06
Rank: #5416 (-305)
Half → 25K
17:06 | 7:03/mi
30K· 18.64 mi
2:08:54
Rank: #6069 (-653)
25K → 30K
23:48 | 7:40/mi
20M
2:19:34
Rank: #6248 (-179)
30K → 20M
10:40 | 7:51/mi
21M
2:28:45
Rank: #6601 (-353)
20M → 21M
9:11 | 9:11/mi
35K· 21.75 mi
2:33:52
Rank: #6467 (+134)
21M → 35K
5:07 | 6:50/mi
23M
2:43:45
Rank: #6533 (-66)
35K → 23M
9:53 | 7:54/mi
24M
2:51:10
Rank: #6505 (+28)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
2:57:45
Rank: #6510 (-5)
24M → 40K
6:35 | 7:42/mi
25.2M
3:00:47
Rank: #6543 (-33)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:08:02
Rank: #6499 (+44)
25.2M → Finish
7:15 | 7:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:00
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:40:02
Pace7:38 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2220:386:3820:38
6:38
-
10K
6.21 mi11:07:0241:186:3920:40
6:39
+0:01
15K
9.32 mi11:27:381:01:546:3820:36
6:38
-0:01
20K
12.43 mi11:49:091:23:256:4321:31
6:56
+0:18
Half
13.11 mi11:53:441:28:006:434:35
6:43
-0:13
25K
15.53 mi12:10:501:45:066:4617:06
7:03
+0:20
30K
18.64 mi12:34:382:08:546:5523:48
7:40
+0:37
20M
20.00 mi12:45:182:19:346:5910:40
7:51
+0:11
21M
21.00 mi12:54:292:28:457:059:11
9:11
+1:20
35K
21.75 mi12:59:362:33:527:045:07
6:50
-2:21
23M
23.00 mi13:09:292:43:457:079:53
7:54
+1:04
24M
24.00 mi13:16:542:51:107:087:25
7:25
-0:29
40K
24.85 mi13:23:292:57:457:096:35
7:42
+0:17
25.2M
25.20 mi13:26:313:00:477:103:02
8:48
+1:06
Finish
26.22 mi13:33:463:08:027:117:15
7:07
-1:41

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

6:38 /mi

Average Pace

7:11 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:29

35% of race

Time at Steady Pace

58:24

31% of race

Time at Slower Pace

1:03:09

34% of race

Average Pace: 7:10 /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 mi10:46:2220:386:3820:38
6:38
#4957
10K
6.21 mi11:07:0241:186:3920:40
6:39
#4905
15K
9.32 mi11:27:381:01:546:3820:36
6:38
#4726
20K
12.43 mi11:49:091:23:256:4321:31
6:56
#5106
Half
13.11 mi11:53:441:28:006:434:35
6:43
#5111
25K
15.53 mi12:10:501:45:066:4617:06
7:03
#5416
30K
18.64 mi12:34:382:08:546:5523:48
7:40
#6069
20M
20.00 mi12:45:182:19:346:5910:40
7:51
#6248
21M
21.00 mi12:54:292:28:457:059:11
9:11
#6601
35K
21.75 mi12:59:362:33:527:045:07
6:50
#6467
23M
23.00 mi13:09:292:43:457:079:53
7:54
#6533
24M
24.00 mi13:16:542:51:107:087:25
7:25
#6505
40K
24.85 mi13:23:292:57:457:096:35
7:42
#6510
25.2M
25.20 mi13:26:313:00:477:103:02
8:48
#6543
Finish
26.22 mi13:33:463:08:027:117:15
7:07
#6499
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4957464146414519(Top 16%)4236(Top 26%)4236(Top 212%)
10K6.21 mi3.10 mi4905+524578+634578+634908(Top 17%)4584(Top 28%)4584(Top 230%)
15K9.32 mi3.11 mi4726+1794422+1564422+1564519(Top 16%)4236(Top 26%)4236(Top 212%)
20K12.43 mi3.11 mi5106-3804741-3194741-3196386(Top 22%)5732(Top 36%)5732(Top 287%)
Half13.11 mi0.68 mi5111-54743-24743-25482(Top 19%)5037(Top 31%)5037(Top 252%)
25K15.53 mi2.42 mi5416-3054987-2444987-2446656(Top 23%)5872(Top 36%)5872(Top 294%)
30K18.64 mi3.11 mi6069-6535485-4985485-4988887(Top 31%)7074(Top 44%)7074(Top 354%)
20M20.00 mi1.36 mi6248-1795618-1335618-1339338(Top 33%)7165(Top 44%)7165(Top 359%)
21M21.00 mi1.00 mi6601-3535862-2445862-24414494(Top 51%)9555(Top 59%)9555(Top 479%)
35K21.75 mi0.75 mi6467+1345754+1085754+1084395(Top 15%)3924(Top 24%)3924(Top 197%)
23M23.00 mi1.25 mi6533-665770-165770-169220(Top 32%)6829(Top 42%)6829(Top 342%)
24M24.00 mi1.00 mi6505+285733+375733+377122(Top 25%)5597(Top 35%)5597(Top 280%)
40K24.85 mi0.85 mi6510-55708+255708+258055(Top 28%)6017(Top 37%)6017(Top 301%)
25.2M25.20 mi0.35 mi6543-335715-75715-710490(Top 37%)7182(Top 45%)7182(Top 360%)
Finish26.22 mi1.02 mi6499+445653+625653+626461(Top 23%)5019(Top 31%)5019(Top 251%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4519

Males

4236

M50-54

4236

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4908

Males

4584

M50-54

4584

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4519

Males

4236

M50-54

4236

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6386

Males

5732

M50-54

5732

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5482

Males

5037

M50-54

5037

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6656

Males

5872

M50-54

5872

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8887

Males

7074

M50-54

7074

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

9338

Males

7165

M50-54

7165

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

14494

Males

9555

M50-54

9555

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4395

Males

3924

M50-54

3924

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

9220

Males

6829

M50-54

6829

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7122

Males

5597

M50-54

5597

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

8055

Males

6017

M50-54

6017

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10490

Males

7182

M50-54

7182

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6461

Males

5019

M50-54

5019

Passing Analysis

Category:
Athletes Passed
1076
Passed By
2618
Net Change
-1542
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4957
5K → 10K199147+52#4957#4905
10K → 15K21536+179#4905#4726
15K → 20K44424-380#4726#5106
20K → Half2429-5#5106#5111
Half → 25K44349-305#5111#5416
25K → 30K56709-653#5416#6069
30K → 20M37216-179#6069#6248
20M → 21M13366-353#6248#6601
21M → 35K1362+134#6601#6467
35K → 23M68134-66#6467#6533
23M → 24M7648+28#6533#6505
24M → 40K5762-5#6505#6510
40K → 25.2M1750-33#6510#6543
25.2M → Finish9046+44#6543#6499
TOTALS10762618-1542
📊

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