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BOSTON MARATHON 2025

Ken Heisz

Bib: 23749•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:05
Rank: #22586
Start → 5K
28:05 | 9:02/mi
10K· 6.21 mi
56:14
Rank: #22620 (-34)
5K → 10K
28:09 | 9:04/mi
15K· 9.32 mi
1:24:42
Rank: #22645 (-25)
10K → 15K
28:28 | 9:10/mi
20K· 12.43 mi
1:53:33
Rank: #22512 (+133)
15K → 20K
28:51 | 9:17/mi
Half· 13.11 mi
1:59:56
Rank: #22563 (-51)
20K → Half
6:23 | 9:21/mi
25K· 15.53 mi
2:22:40
Rank: #22375 (+188)
Half → 25K
22:44 | 9:23/mi
30K· 18.64 mi
2:53:44
Rank: #22236 (+139)
25K → 30K
31:04 | 10:00/mi
20M
3:08:08
Rank: #22274 (-38)
30K → 20M
14:24 | 10:36/mi
21M
3:19:14
Rank: #22198 (+76)
20M → 21M
11:06 | 11:06/mi
35K· 21.75 mi
3:27:01
Rank: #22239 (-41)
21M → 35K
7:47 | 10:24/mi
23M
3:40:09
Rank: #22196 (+43)
35K → 23M
13:08 | 10:29/mi
24M
3:50:32
Rank: #22201 (-5)
23M → 24M
10:23 | 10:23/mi
40K· 24.85 mi
3:59:44
Rank: #22226 (-25)
24M → 40K
9:12 | 10:46/mi
25.2M
4:03:44
Rank: #22227 (-1)
40K → 25.2M
4:00 | 11:36/mi
Finish· 26.22 mi
4:14:17
Rank: #22262 (-35)
25.2M → Finish
10:33 | 10:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:56
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:14:21
Pace10:15 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:3828:059:0228:05
9:02
-
10K
6.21 mi11:56:4756:149:0328:09
9:04
+0:02
15K
9.32 mi12:25:151:24:429:0528:28
9:10
+0:06
20K
12.43 mi12:54:061:53:339:0828:51
9:17
+0:07
Half
13.11 mi13:00:291:59:569:096:23
9:21
+0:04
25K
15.53 mi13:23:132:22:409:1122:44
9:23
+0:02
30K
18.64 mi13:54:172:53:449:1931:04
10:00
+0:37
20M
20.00 mi14:08:413:08:089:2414:24
10:36
+0:36
21M
21.00 mi14:19:473:19:149:2911:06
11:06
+0:30
35K
21.75 mi14:27:343:27:019:317:47
10:24
-0:42
23M
23.00 mi14:40:423:40:099:3413:08
10:29
+0:05
24M
24.00 mi14:51:053:50:329:3610:23
10:23
-0:06
40K
24.85 mi15:00:173:59:449:399:12
10:46
+0:23
25.2M
25.20 mi15:04:174:03:449:404:00
11:36
+0:50
Finish
26.22 mi15:14:504:14:179:4210:33
10:21
-1:15

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

9:02 /mi

Average Pace

9:42 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:40

56% of race

Time at Steady Pace

1:27:19

34% of race

Time at Slower Pace

24:18

10% of race

Average Pace: 9:42 /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 mi11:28:3828:059:0228:05
9:02
#22586
10K
6.21 mi11:56:4756:149:0328:09
9:04
#22620
15K
9.32 mi12:25:151:24:429:0528:28
9:10
#22645
20K
12.43 mi12:54:061:53:339:0828:51
9:17
#22512
Half
13.11 mi13:00:291:59:569:096:23
9:21
#22563
25K
15.53 mi13:23:132:22:409:1122:44
9:23
#22375
30K
18.64 mi13:54:172:53:449:1931:04
10:00
#22236
20M
20.00 mi14:08:413:08:089:2414:24
10:36
#22274
21M
21.00 mi14:19:473:19:149:2911:06
11:06
#22198
35K
21.75 mi14:27:343:27:019:317:47
10:24
#22239
23M
23.00 mi14:40:423:40:099:3413:08
10:29
#22196
24M
24.00 mi14:51:053:50:329:3610:23
10:23
#22201
40K
24.85 mi15:00:173:59:449:399:12
10:46
#22226
25.2M
25.20 mi15:04:174:03:449:404:00
11:36
#22227
Finish
26.22 mi15:14:504:14:179:4210:33
10:21
#22262
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi22586135731357322722(Top 80%)13702(Top 85%)13702(Top 2144%)
10K6.21 mi3.10 mi22620-3413609-3613609-3622642(Top 80%)13637(Top 85%)13637(Top 2134%)
15K9.32 mi3.11 mi22645-2513649-4013649-4022722(Top 80%)13702(Top 85%)13702(Top 2144%)
20K12.43 mi3.11 mi22512+13313580+6913580+6922225(Top 78%)13456(Top 84%)13456(Top 2106%)
Half13.11 mi0.68 mi22563-5113609-2913609-2923117(Top 81%)13836(Top 86%)13836(Top 2165%)
25K15.53 mi2.42 mi22375+18813517+9213517+9221459(Top 76%)13067(Top 81%)13067(Top 2045%)
30K18.64 mi3.11 mi22236+13913421+9613421+9621596(Top 76%)12985(Top 81%)12985(Top 2032%)
20M20.00 mi1.36 mi22274-3813412+913412+922678(Top 80%)13378(Top 83%)13378(Top 2094%)
21M21.00 mi1.00 mi22198+7613363+4913363+4921656(Top 76%)12811(Top 80%)12811(Top 2005%)
35K21.75 mi0.75 mi22239-4113364-113364-122947(Top 81%)13358(Top 83%)13358(Top 2090%)
23M23.00 mi1.25 mi22196+4313307+5713307+5721991(Top 77%)12872(Top 80%)12872(Top 2014%)
24M24.00 mi1.00 mi22201-513280+2713280+2722477(Top 79%)13040(Top 81%)13040(Top 2041%)
40K24.85 mi0.85 mi22226-2513292-1213292-1222582(Top 80%)13032(Top 81%)13032(Top 2039%)
25.2M25.20 mi0.35 mi22227-113285+713285+722286(Top 78%)12936(Top 80%)12936(Top 2024%)
Finish26.22 mi1.02 mi22262-3513274+1113274+1123915(Top 84%)13724(Top 85%)13724(Top 2148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

22722

Males

13702

M65-69

13702

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

22642

Males

13637

M65-69

13637

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

22722

Males

13702

M65-69

13702

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

22225

Males

13456

M65-69

13456

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

23117

Males

13836

M65-69

13836

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

21459

Males

13067

M65-69

13067

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21596

Males

12985

M65-69

12985

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22678

Males

13378

M65-69

13378

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

21656

Males

12811

M65-69

12811

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

22947

Males

13358

M65-69

13358

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

21991

Males

12872

M65-69

12872

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22477

Males

13040

M65-69

13040

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22582

Males

13032

M65-69

13032

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22286

Males

12936

M65-69

12936

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

23915

Males

13724

M65-69

13724

Passing Analysis

Category:
Athletes Passed
1585
Passed By
1261
Net Change
+324
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22586
5K → 10K227261-34#22586#22620
10K → 15K175200-25#22620#22645
15K → 20K234101+133#22645#22512
20K → Half2172-51#22512#22563
Half → 25K24052+188#22563#22375
25K → 30K252113+139#22375#22236
30K → 20M65103-38#22236#22274
20M → 21M11337+76#22274#22198
21M → 35K3273-41#22198#22239
35K → 23M9249+43#22239#22196
23M → 24M5257-5#22196#22201
24M → 40K3257-25#22201#22226
40K → 25.2M1920-1#22226#22227
25.2M → Finish3166-35#22227#22262
TOTALS15851261+324
📊

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