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BOSTON MARATHON 2025

Paul Klan

Bib: 12055•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
Masters (Masters Men)
#0 / 10463
Top 17%
Division (M45-49)
#0 / 2386
Top 23%
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
6:27/mi
20:03
↑ 97↓ 3451.5%
10K· 6.21 mi
6:41/mi
40:50
↑ 79↓ 1380.4%
15K· 9.32 mi
6:42/mi
1:01:39
↑ 67↓ 78
20K· 12.43 mi
6:56/mi
1:23:12
↑ 106↓ 860.1%
Half· 13.11 mi
6:59/mi
1:27:58
↑ 19↓ 370.5%
25K· 15.53 mi
7:04/mi
1:45:06
↑ 66↓ 880.2%
30K· 18.64 mi
7:21/mi
2:07:55
↑ 181↓ 1480.2%
20M
7:33/mi
2:18:11
↑ 64↓ 500.2%
21M
8:11/mi
2:26:22
↑ 106↓ 241.6%
35K· 21.75 mi
7:21/mi
2:31:52
↑ 17↓ 861.7%
23M
7:42/mi
2:41:30
↑ 23↓ 630.6%
24M
7:09/mi
2:48:39
↓ 821.3%
40K· 24.85 mi
7:16/mi
2:54:52
↓ 200.3%
25.2M
7:44/mi
2:57:32
↑ 13↓ 160.2%
Finish· 26.22 mi
6:36/mi
3:04:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:58
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:36:18
Pace7:21 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0220:036:2720:03
6:27
-
10K
6.21 mi11:08:4940:506:3420:47
6:41
+0:14
15K
9.32 mi11:29:381:01:396:3720:49
6:42
+0:01
20K
12.43 mi11:51:111:23:126:4221:33
6:56
+0:14
Half
13.11 mi11:55:571:27:586:434:46
6:59
+0:03
25K
15.53 mi12:13:051:45:066:4617:08
7:04
+0:05
30K
18.64 mi12:35:542:07:556:5222:49
7:21
+0:17
20M
20.00 mi12:46:102:18:116:5510:16
7:33
+0:12
21M
21.00 mi12:54:212:26:226:588:11
8:11
+0:38
35K
21.75 mi12:59:512:31:526:595:30
7:21
-0:50
23M
23.00 mi13:09:292:41:307:019:38
7:42
+0:21
24M
24.00 mi13:16:382:48:397:027:09
7:09
-0:33
40K
24.85 mi13:22:512:54:527:026:13
7:16
+0:07
25.2M
25.20 mi13:25:312:57:327:032:40
7:44
+0:28
Finish
26.22 mi13:32:153:04:167:026:44
6:36
-1:08

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

6:27 /mi

Average Pace

7:02 /mi

Slowest Pace

8:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:08:23

37% of race

Time at Steady Pace

1:25:08

46% of race

Time at Slower Pace

30:45

17% of race

Average Pace: 7:02 /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 mi10:48:0220:036:2720:03
6:27
#3500
10K
6.21 mi11:08:4940:506:3420:47
6:41
#4294
15K
9.32 mi11:29:381:01:396:3720:49
6:42
#4506
20K
12.43 mi11:51:111:23:126:4221:33
6:56
#4949
Half
13.11 mi11:55:571:27:586:434:46
6:59
#5086
25K
15.53 mi12:13:051:45:066:4617:08
7:04
#5415
30K
18.64 mi12:35:542:07:556:5222:49
7:21
#5689
20M
20.00 mi12:46:102:18:116:5510:16
7:33
#5795
21M
21.00 mi12:54:212:26:226:588:11
8:11
#5877
35K
21.75 mi12:59:512:31:526:595:30
7:21
#5916
23M
23.00 mi13:09:292:41:307:019:38
7:42
#5941
24M
24.00 mi13:16:382:48:397:027:09
7:09
#5861
40K
24.85 mi13:22:512:54:527:026:13
7:16
#5792
25.2M
25.20 mi13:25:312:57:327:032:40
7:44
#5729
Finish
26.22 mi13:32:153:04:167:026:44
6:36
#5582
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3500332733275087(Top 18%)4722(Top 29%)4722(Top 198%)
10K6.21 mi3.10 mi4294-7944038-7114038-7115260(Top 19%)4881(Top 30%)4881(Top 205%)
15K9.32 mi3.11 mi4506-2124233-1954233-1955087(Top 18%)4722(Top 29%)4722(Top 198%)
20K12.43 mi3.11 mi4949-4434612-3794612-3796469(Top 23%)5800(Top 36%)5800(Top 243%)
Half13.11 mi0.68 mi5086-1374722-1104722-1107445(Top 26%)6535(Top 41%)6535(Top 274%)
25K15.53 mi2.42 mi5415-3294986-2644986-2646744(Top 24%)5936(Top 37%)5936(Top 249%)
30K18.64 mi3.11 mi5689-2745189-2035189-2036709(Top 24%)5787(Top 36%)5787(Top 243%)
20M20.00 mi1.36 mi5795-1065265-765265-767374(Top 26%)6056(Top 38%)6056(Top 254%)
21M21.00 mi1.00 mi5877-825314-495314-498437(Top 30%)6497(Top 40%)6497(Top 272%)
35K21.75 mi0.75 mi5916-395335-215335-217525(Top 26%)6002(Top 37%)6002(Top 252%)
23M23.00 mi1.25 mi5941-255336-15336-17841(Top 28%)6063(Top 38%)6063(Top 254%)
24M24.00 mi1.00 mi5861+805254+825254+825515(Top 19%)4612(Top 29%)4612(Top 193%)
40K24.85 mi0.85 mi5792+695188+665188+665491(Top 19%)4551(Top 28%)4551(Top 191%)
25.2M25.20 mi0.35 mi5729+635132+565132+564534(Top 16%)3812(Top 24%)3812(Top 160%)
Finish26.22 mi1.02 mi5582+1475008+1245008+1243393(Top 12%)2977(Top 18%)2977(Top 125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

5087

Males

4722

M45-49

4722

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5260

Males

4881

M45-49

4881

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

5087

Males

4722

M45-49

4722

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

6469

Males

5800

M45-49

5800

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

7445

Males

6535

M45-49

6535

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6744

Males

5936

M45-49

5936

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6709

Males

5787

M45-49

5787

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7374

Males

6056

M45-49

6056

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8437

Males

6497

M45-49

6497

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7525

Males

6002

M45-49

6002

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7841

Males

6063

M45-49

6063

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5515

Males

4612

M45-49

4612

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5491

Males

4551

M45-49

4551

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4534

Males

3812

M45-49

3812

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3393

Males

2977

M45-49

2977

Passing Analysis

Category:
Athletes Passed
850
Passed By
2932
Net Change
-2082
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3500
5K → 10K9803-794#3500#4294
10K → 15K42254-212#4294#4506
15K → 20K44487-443#4506#4949
20K → Half7144-137#4949#5086
Half → 25K39368-329#5086#5415
25K → 30K114388-274#5415#5689
30K → 20M40146-106#5689#5795
20M → 21M40122-82#5795#5877
21M → 35K3675-39#5877#5916
35K → 23M75100-25#5916#5941
23M → 24M9919+80#5941#5861
24M → 40K8718+69#5861#5792
40K → 25.2M674+63#5792#5729
25.2M → Finish1514+147#5729#5582
TOTALS8502932-2082
📊

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