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BOSTON MARATHON 2025

Karl Tyndall

Bib: 32264•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:09
Rank: #22684
Start → 5K
28:09 | 9:04/mi
10K· 6.21 mi
55:25
Rank: #22043 (+641)
5K → 10K
27:16 | 8:47/mi
15K· 9.32 mi
1:22:35
Rank: #21586 (+457)
10K → 15K
27:10 | 8:45/mi
20K· 12.43 mi
1:52:20
Rank: #22097 (-511)
15K → 20K
29:45 | 9:35/mi
Half· 13.11 mi
1:58:29
Rank: #22092 (+5)
20K → Half
6:09 | 9:01/mi
25K· 15.53 mi
2:24:22
Rank: #22766 (-674)
Half → 25K
25:53 | 10:41/mi
30K· 18.64 mi
2:57:50
Rank: #22916 (-150)
25K → 30K
33:28 | 10:46/mi
20M
3:12:31
Rank: #22924 (-8)
30K → 20M
14:41 | 10:48/mi
21M
3:23:16
Rank: #22818 (+106)
20M → 21M
10:45 | 10:45/mi
35K· 21.75 mi
3:30:12
Rank: #22684 (+134)
21M → 35K
6:56 | 9:16/mi
23M
3:43:57
Rank: #22709 (-25)
35K → 23M
13:45 | 10:59/mi
24M
3:53:58
Rank: #22635 (+74)
23M → 24M
10:01 | 10:01/mi
40K· 24.85 mi
4:03:33
Rank: #22662 (-27)
24M → 40K
9:35 | 11:13/mi
25.2M
4:07:22
Rank: #22648 (+14)
40K → 25.2M
3:49 | 11:04/mi
Finish· 26.22 mi
4:17:05
Rank: #22602 (+46)
25.2M → Finish
9:43 | 9:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:29
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:18:36
Pace10:34 /mi
📊Positive Split: 17.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3928:099:0428:09
9:04
-
10K
6.21 mi12:20:5555:258:5527:16
8:47
-0:17
15K
9.32 mi12:48:051:22:358:5227:10
8:45
-0:02
20K
12.43 mi13:17:501:52:209:0229:45
9:35
+0:50
Half
13.11 mi13:23:591:58:299:026:09
9:01
-0:34
25K
15.53 mi13:49:522:24:229:1825:53
10:41
+1:40
30K
18.64 mi14:23:202:57:509:3233:28
10:46
+0:05
20M
20.00 mi14:38:013:12:319:3814:41
10:48
+0:02
21M
21.00 mi14:48:463:23:169:4110:45
10:45
-0:03
35K
21.75 mi14:55:423:30:129:406:56
9:16
-1:29
23M
23.00 mi15:09:273:43:579:4413:45
10:59
+1:43
24M
24.00 mi15:19:283:53:589:4510:01
10:01
-0:58
40K
24.85 mi15:29:034:03:339:489:35
11:13
+1:12
25.2M
25.20 mi15:32:524:07:229:493:49
11:04
-0:09
Finish
26.22 mi15:42:354:17:059:499:43
9:32
-1:32

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

8:45 /mi

Average Pace

9:49 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:23

41% of race

Time at Steady Pace

39:46

15% of race

Time at Slower Pace

1:51:56

44% of race

Average Pace: 9:48 /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 mi11:53:3928:099:0428:09
9:04
#22684
10K
6.21 mi12:20:5555:258:5527:16
8:47
#22043
15K
9.32 mi12:48:051:22:358:5227:10
8:45
#21586
20K
12.43 mi13:17:501:52:209:0229:45
9:35
#22097
Half
13.11 mi13:23:591:58:299:026:09
9:01
#22092
25K
15.53 mi13:49:522:24:229:1825:53
10:41
#22766
30K
18.64 mi14:23:202:57:509:3233:28
10:46
#22916
20M
20.00 mi14:38:013:12:319:3814:41
10:48
#22924
21M
21.00 mi14:48:463:23:169:4110:45
10:45
#22818
35K
21.75 mi14:55:423:30:129:406:56
9:16
#22684
23M
23.00 mi15:09:273:43:579:4413:45
10:59
#22709
24M
24.00 mi15:19:283:53:589:4510:01
10:01
#22635
40K
24.85 mi15:29:034:03:339:489:35
11:13
#22662
25.2M
25.20 mi15:32:524:07:229:493:49
11:04
#22648
Finish
26.22 mi15:42:354:17:059:499:43
9:32
#22602
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi22684136221362220717(Top 73%)12823(Top 80%)12823(Top 571%)
10K6.21 mi3.10 mi22043+64113346+27613346+27621286(Top 75%)13039(Top 81%)13039(Top 580%)
15K9.32 mi3.11 mi21586+45713173+17313173+17320717(Top 73%)12823(Top 80%)12823(Top 571%)
20K12.43 mi3.11 mi22097-51113388-21513388-21523129(Top 81%)13854(Top 86%)13854(Top 617%)
Half13.11 mi0.68 mi22092+513384+413384+421873(Top 77%)13297(Top 83%)13297(Top 592%)
25K15.53 mi2.42 mi22766-67413693-30913693-30924667(Top 87%)14494(Top 90%)14494(Top 645%)
30K18.64 mi3.11 mi22916-15013718-2513718-2523542(Top 83%)13855(Top 86%)13855(Top 617%)
20M20.00 mi1.36 mi22924-813695+2313695+2323174(Top 82%)13606(Top 84%)13606(Top 606%)
21M21.00 mi1.00 mi22818+10613626+6913626+6920718(Top 73%)12366(Top 77%)12366(Top 550%)
35K21.75 mi0.75 mi22684+13413558+6813558+6819451(Top 68%)11718(Top 73%)11718(Top 521%)
23M23.00 mi1.25 mi22709-2513545+1313545+1323174(Top 82%)13414(Top 83%)13414(Top 597%)
24M24.00 mi1.00 mi22635+7413480+6513480+6521414(Top 75%)12548(Top 78%)12548(Top 558%)
40K24.85 mi0.85 mi22662-2713481-113481-123577(Top 83%)13543(Top 84%)13543(Top 603%)
25.2M25.20 mi0.35 mi22648+1413462+1913462+1920839(Top 73%)12215(Top 76%)12215(Top 544%)
Finish26.22 mi1.02 mi22602+4613425+3713425+3721293(Top 75%)12434(Top 77%)12434(Top 553%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20717

Males

12823

M40-44

12823

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21286

Males

13039

M40-44

13039

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20717

Males

12823

M40-44

12823

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

23129

Males

13854

M40-44

13854

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21873

Males

13297

M40-44

13297

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

24667

Males

14494

M40-44

14494

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

23542

Males

13855

M40-44

13855

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

23174

Males

13606

M40-44

13606

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20718

Males

12366

M40-44

12366

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

19451

Males

11718

M40-44

11718

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

23174

Males

13414

M40-44

13414

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

21414

Males

12548

M40-44

12548

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23577

Males

13543

M40-44

13543

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20839

Males

12215

M40-44

12215

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21293

Males

12434

M40-44

12434

Passing Analysis

Category:
Athletes Passed
2059
Passed By
1977
Net Change
+82
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22684
5K → 10K69958+641#22684#22043
10K → 15K50346+457#22043#21586
15K → 20K78589-511#21586#22097
20K → Half3328+5#22097#22092
Half → 25K21695-674#22092#22766
25K → 30K110260-150#22766#22916
30K → 20M7583-8#22916#22924
20M → 21M12418+106#22924#22818
21M → 35K1351+134#22818#22684
35K → 23M6590-25#22684#22709
23M → 24M9319+74#22709#22635
24M → 40K3158-27#22635#22662
40K → 25.2M2713+14#22662#22648
25.2M → Finish6519+46#22648#22602
TOTALS20591977+82
📊

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