Boston Marathon logo
BOSTON MARATHON 2025

Anders Kjellen

Bib: 5667•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 16%
Masters (Masters Men)
#0 / 10463
Top 5%
Division (M45-49)
#0 / 2386
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:33
Rank: #4716
Start → 5K
20:33 | 6:37/mi
10K· 6.21 mi
41:02
Rank: #4535 (+181)
5K → 10K
20:29 | 6:36/mi
15K· 9.32 mi
1:01:02
Rank: #4022 (+513)
10K → 15K
20:00 | 6:26/mi
20K· 12.43 mi
1:21:02
Rank: #3659 (+363)
15K → 20K
20:00 | 6:26/mi
Half· 13.11 mi
1:25:20
Rank: #3591 (+68)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:40:56
Rank: #3364 (+227)
Half → 25K
15:36 | 6:26/mi
30K· 18.64 mi
2:01:41
Rank: #3201 (+163)
25K → 30K
20:45 | 6:41/mi
20M
2:10:57
Rank: #3145 (+56)
30K → 20M
9:16 | 6:49/mi
21M
2:18:03
Rank: #3085 (+60)
20M → 21M
7:06 | 7:06/mi
35K· 21.75 mi
2:22:54
Rank: #3024 (+61)
21M → 35K
4:51 | 6:29/mi
23M
2:31:16
Rank: #2923 (+101)
35K → 23M
8:22 | 6:41/mi
24M
2:37:48
Rank: #2850 (+73)
23M → 24M
6:32 | 6:32/mi
40K· 24.85 mi
2:43:27
Rank: #2787 (+63)
24M → 40K
5:39 | 6:36/mi
25.2M
2:45:51
Rank: #2739 (+48)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:52:05
Rank: #2648 (+91)
25.2M → Finish
6:14 | 6:07/mi

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
Time1:25:20
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:26:45
Pace6:37 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3520:336:3720:33
6:37
-
10K
6.21 mi10:46:0441:026:3620:29
6:36
-0:01
15K
9.32 mi11:06:041:01:026:3320:00
6:26
-0:10
20K
12.43 mi11:26:041:21:026:3120:00
6:26
0:00
Half
13.11 mi11:30:221:25:206:314:18
6:18
-0:08
25K
15.53 mi11:45:581:40:566:3015:36
6:26
+0:08
30K
18.64 mi12:06:432:01:416:3220:45
6:41
+0:15
20M
20.00 mi12:15:592:10:576:339:16
6:49
+0:08
21M
21.00 mi12:23:052:18:036:347:06
7:06
+0:17
35K
21.75 mi12:27:562:22:546:344:51
6:29
-0:37
23M
23.00 mi12:36:182:31:166:358:22
6:41
+0:12
24M
24.00 mi12:42:502:37:486:356:32
6:32
-0:09
40K
24.85 mi12:48:292:43:276:355:39
6:36
+0:04
25.2M
25.20 mi12:50:532:45:516:352:24
6:58
+0:22
Finish
26.22 mi12:57:072:52:056:346:14
6:07
-0:51

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

6:07 /mi

Average Pace

6:34 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:19

89% of race

Time at Steady Pace

18:46

11% of race

Time at Slower Pace

0:00

0% 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 mi10:25:3520:336:3720:33
6:37
#4716
10K
6.21 mi10:46:0441:026:3620:29
6:36
#4535
15K
9.32 mi11:06:041:01:026:3320:00
6:26
#4022
20K
12.43 mi11:26:041:21:026:3120:00
6:26
#3659
Half
13.11 mi11:30:221:25:206:314:18
6:18
#3591
25K
15.53 mi11:45:581:40:566:3015:36
6:26
#3364
30K
18.64 mi12:06:432:01:416:3220:45
6:41
#3201
20M
20.00 mi12:15:592:10:576:339:16
6:49
#3145
21M
21.00 mi12:23:052:18:036:347:06
7:06
#3085
35K
21.75 mi12:27:562:22:546:344:51
6:29
#3024
23M
23.00 mi12:36:182:31:166:358:22
6:41
#2923
24M
24.00 mi12:42:502:37:486:356:32
6:32
#2850
40K
24.85 mi12:48:292:43:276:355:39
6:36
#2787
25.2M
25.20 mi12:50:532:45:516:352:24
6:58
#2739
Finish
26.22 mi12:57:072:52:056:346:14
6:07
#2648
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4716442444243177(Top 11%)3023(Top 19%)3023(Top 127%)
10K6.21 mi3.10 mi4535+1814261+1634261+1634427(Top 16%)4152(Top 26%)4152(Top 174%)
15K9.32 mi3.11 mi4022+5133792+4693792+4693177(Top 11%)3023(Top 19%)3023(Top 127%)
20K12.43 mi3.11 mi3659+3633462+3303462+3302749(Top 10%)2619(Top 16%)2619(Top 110%)
Half13.11 mi0.68 mi3591+683401+613401+612574(Top 9%)2463(Top 15%)2463(Top 103%)
25K15.53 mi2.42 mi3364+2273197+2043197+2042531(Top 9%)2407(Top 15%)2407(Top 101%)
30K18.64 mi3.11 mi3201+1633041+1563041+1562793(Top 10%)2643(Top 16%)2643(Top 111%)
20M20.00 mi1.36 mi3145+562981+602981+603053(Top 11%)2843(Top 18%)2843(Top 119%)
21M21.00 mi1.00 mi3085+602922+592922+592691(Top 9%)2501(Top 16%)2501(Top 105%)
35K21.75 mi0.75 mi3024+612863+592863+592418(Top 9%)2261(Top 14%)2261(Top 95%)
23M23.00 mi1.25 mi2923+1012767+962767+962190(Top 8%)2047(Top 13%)2047(Top 86%)
24M24.00 mi1.00 mi2850+732698+692698+692202(Top 8%)2042(Top 13%)2042(Top 86%)
40K24.85 mi0.85 mi2787+632641+572641+572020(Top 7%)1863(Top 12%)1863(Top 78%)
25.2M25.20 mi0.35 mi2739+482593+482593+481408(Top 5%)1295(Top 8%)1295(Top 54%)
Finish26.22 mi1.02 mi2648+912506+872506+871272(Top 4%)1190(Top 7%)1190(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

3177

Males

3023

M45-49

3023

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4427

Males

4152

M45-49

4152

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

3177

Males

3023

M45-49

3023

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2749

Males

2619

M45-49

2619

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2574

Males

2463

M45-49

2463

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2531

Males

2407

M45-49

2407

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2793

Males

2643

M45-49

2643

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3053

Males

2843

M45-49

2843

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2691

Males

2501

M45-49

2501

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2418

Males

2261

M45-49

2261

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2190

Males

2047

M45-49

2047

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2202

Males

2042

M45-49

2042

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

2020

Males

1863

M45-49

1863

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1408

Males

1295

M45-49

1295

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1272

Males

1190

M45-49

1190

Passing Analysis

Category:
Athletes Passed
2280
Passed By
212
Net Change
+2068
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4716
5K → 10K26988+181#4716#4535
10K → 15K5141+513#4535#4022
15K → 20K3641+363#4022#3659
20K → Half691+68#3659#3591
Half → 25K2336+227#3591#3364
25K → 30K19532+163#3364#3201
30K → 20M8529+56#3201#3145
20M → 21M7010+60#3145#3085
21M → 35K709+61#3085#3024
35K → 23M1109+101#3024#2923
23M → 24M8310+73#2923#2850
24M → 40K7411+63#2850#2787
40K → 25.2M491+48#2787#2739
25.2M → Finish954+91#2739#2648
TOTALS2280212+2068
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing