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BOSTON MARATHON 2025

Klemen Avsenik

Bib: 10939•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 37%
Division (M45-49)
#0 / 2386
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
7:28/mi
23:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
46:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:09:35
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:32:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:38:02
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:56:36
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:20:35
↑ 181↓ 1480.2%
20M
7:57/mi
2:31:23
↑ 64↓ 500.2%
21M
8:06/mi
2:39:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:45:12
↑ 17↓ 861.7%
23M
7:53/mi
2:55:04
↑ 23↓ 630.6%
24M
7:46/mi
3:02:50
↓ 821.3%
40K· 24.85 mi
7:43/mi
3:09:26
↓ 200.3%
25.2M
8:01/mi
3:12:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:05/mi
3:19:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:02
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:41:23
Pace7:44 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4123:137:2823:13
7:28
-
10K
6.21 mi11:12:5346:257:2823:12
7:28
0:00
15K
9.32 mi11:36:031:09:357:2823:10
7:27
-0:01
20K
12.43 mi11:59:251:32:577:2923:22
7:31
+0:04
Half
13.11 mi12:04:301:38:027:295:05
7:27
-0:04
25K
15.53 mi12:23:041:56:367:3018:34
7:39
+0:12
30K
18.64 mi12:47:032:20:357:3223:59
7:43
+0:04
20M
20.00 mi12:57:512:31:237:3410:48
7:57
+0:14
21M
21.00 mi13:05:572:39:297:368:06
8:06
+0:09
35K
21.75 mi13:11:402:45:127:365:43
7:38
-0:28
23M
23.00 mi13:21:322:55:047:379:52
7:53
+0:15
24M
24.00 mi13:29:183:02:507:377:46
7:46
-0:07
40K
24.85 mi13:35:543:09:267:376:36
7:43
-0:03
25.2M
25.20 mi13:38:403:12:127:382:46
8:01
+0:18
Finish
26.22 mi13:45:533:19:257:377:13
7:05
-0:56

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

7:05 /mi

Average Pace

7:37 /mi

Slowest Pace

8:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:53

84% of race

Time at Steady Pace

31:32

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi10:49:4123:137:2823:13
7:28
#11998
10K
6.21 mi11:12:5346:257:2823:12
7:28
#11846
15K
9.32 mi11:36:031:09:357:2823:10
7:27
#11668
20K
12.43 mi11:59:251:32:577:2923:22
7:31
#11455
Half
13.11 mi12:04:301:38:027:295:05
7:27
#11452
25K
15.53 mi12:23:041:56:367:3018:34
7:39
#11377
30K
18.64 mi12:47:032:20:357:3223:59
7:43
#10957
20M
20.00 mi12:57:512:31:237:3410:48
7:57
#10846
21M
21.00 mi13:05:572:39:297:368:06
8:06
#10629
35K
21.75 mi13:11:402:45:127:365:43
7:38
#10572
23M
23.00 mi13:21:322:55:047:379:52
7:53
#10438
24M
24.00 mi13:29:183:02:507:377:46
7:46
#10379
40K
24.85 mi13:35:543:09:267:376:36
7:43
#10249
25.2M
25.20 mi13:38:403:12:127:382:46
8:01
#10153
Finish
26.22 mi13:45:533:19:257:377:13
7:05
#9967
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi119989165916511376(Top 40%)8775(Top 54%)8775(Top 368%)
10K6.21 mi3.10 mi11846+1529086+799086+7911764(Top 41%)9029(Top 56%)9029(Top 378%)
15K9.32 mi3.11 mi11668+1788978+1088978+10811376(Top 40%)8775(Top 54%)8775(Top 368%)
20K12.43 mi3.11 mi11455+2138838+1408838+14010923(Top 38%)8458(Top 53%)8458(Top 354%)
Half13.11 mi0.68 mi11452+38838883811233(Top 40%)8644(Top 54%)8644(Top 362%)
25K15.53 mi2.42 mi11377+758765+738765+7311194(Top 39%)8477(Top 53%)8477(Top 355%)
30K18.64 mi3.11 mi10957+4208479+2868479+2869321(Top 33%)7329(Top 46%)7329(Top 307%)
20M20.00 mi1.36 mi10846+1118386+938386+9310070(Top 35%)7580(Top 47%)7580(Top 318%)
21M21.00 mi1.00 mi10629+2178243+1438243+1437953(Top 28%)6235(Top 39%)6235(Top 261%)
35K21.75 mi0.75 mi10572+578197+468197+469609(Top 34%)7163(Top 44%)7163(Top 300%)
23M23.00 mi1.25 mi10438+1348092+1058092+1059135(Top 32%)6793(Top 42%)6793(Top 285%)
24M24.00 mi1.00 mi10379+598028+648028+649548(Top 34%)6940(Top 43%)6940(Top 291%)
40K24.85 mi0.85 mi10249+1307922+1067922+1068215(Top 29%)6114(Top 38%)6114(Top 256%)
25.2M25.20 mi0.35 mi10153+967858+647858+646087(Top 21%)4813(Top 30%)4813(Top 202%)
Finish26.22 mi1.02 mi9967+1867736+1227736+1226267(Top 22%)4910(Top 30%)4910(Top 206%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11376

Males

8775

M45-49

8775

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11764

Males

9029

M45-49

9029

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11376

Males

8775

M45-49

8775

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10923

Males

8458

M45-49

8458

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11233

Males

8644

M45-49

8644

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

11194

Males

8477

M45-49

8477

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9321

Males

7329

M45-49

7329

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

10070

Males

7580

M45-49

7580

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7953

Males

6235

M45-49

6235

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9609

Males

7163

M45-49

7163

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9135

Males

6793

M45-49

6793

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9548

Males

6940

M45-49

6940

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8215

Males

6114

M45-49

6114

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

6087

Males

4813

M45-49

4813

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

6267

Males

4910

M45-49

4910

Passing Analysis

Category:
Athletes Passed
2791*
Passed By
760
Net Change
+2031
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11998
5K → 10K342190+152#11998#11846
10K → 15K26587+178#11846#11668
15K → 20K29279+213#11668#11455
20K → Half3734+3#11455#11452
Half → 25K189114+75#11452#11377
25K → 30K46848+420#11377#10957
30K → 20M16958+111#10957#10846
20M → 21M23013+217#10846#10629
21M → 35K8023+57#10629#10572
35K → 23M16531+134#10572#10438
23M → 24M11556+59#10438#10379
24M → 40K14616+130#10379#10249
40K → 25.2M971+96#10249#10153
25.2M → Finish196*10+186#10153#9967
TOTALS2791*760+2031

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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