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BOSTON MARATHON 2025

Stuart Palczak

Bib: 18459•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:40
Rank: #13271
Start → 5K
23:40 | 7:37/mi
10K· 6.21 mi
47:08
Rank: #12888 (+383)
5K → 10K
23:28 | 7:33/mi
15K· 9.32 mi
1:11:00
Rank: #13014 (-126)
10K → 15K
23:52 | 7:41/mi
20K· 12.43 mi
1:35:46
Rank: #13418 (-404)
15K → 20K
24:46 | 7:58/mi
Half· 13.11 mi
1:41:00
Rank: #13396 (+22)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:01:33
Rank: #14079 (-683)
Half → 25K
20:33 | 8:29/mi
30K· 18.64 mi
2:29:00
Rank: #14664 (-585)
25K → 30K
27:27 | 8:50/mi
20M
2:41:03
Rank: #14770 (-106)
30K → 20M
12:03 | 8:52/mi
21M
2:50:49
Rank: #14909 (-139)
20M → 21M
9:46 | 9:46/mi
35K· 21.75 mi
2:58:12
Rank: #15250 (-341)
21M → 35K
7:23 | 9:52/mi
23M
3:11:14
Rank: #15773 (-523)
35K → 23M
13:02 | 10:25/mi
24M
3:22:29
Rank: #16457 (-684)
23M → 24M
11:15 | 11:15/mi
40K· 24.85 mi
3:32:26
Rank: #17070 (-613)
24M → 40K
9:57 | 11:38/mi
25.2M
3:36:54
Rank: #17324 (-254)
40K → 25.2M
4:28 | 12:57/mi
Finish· 26.22 mi
3:47:18
Rank: #17681 (-357)
25.2M → Finish
10:24 | 10:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:00
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time2:06:18
Pace9:38 /mi
📊Positive Split: 25.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5723:407:3723:40
7:37
-
10K
6.21 mi11:38:2547:087:3523:28
7:33
-0:04
15K
9.32 mi12:02:171:11:007:3723:52
7:41
+0:08
20K
12.43 mi12:27:031:35:467:4224:46
7:58
+0:17
Half
13.11 mi12:32:171:41:007:425:14
7:40
-0:18
25K
15.53 mi12:52:502:01:337:4920:33
8:29
+0:49
30K
18.64 mi13:20:172:29:008:0027:27
8:50
+0:21
20M
20.00 mi13:32:202:41:038:0312:03
8:52
+0:02
21M
21.00 mi13:42:062:50:498:089:46
9:46
+0:54
35K
21.75 mi13:49:292:58:128:127:23
9:52
+0:06
23M
23.00 mi14:02:313:11:148:1913:02
10:25
+0:33
24M
24.00 mi14:13:463:22:298:2611:15
11:15
+0:50
40K
24.85 mi14:23:433:32:268:339:57
11:38
+0:23
25.2M
25.20 mi14:28:113:36:548:364:28
12:57
+1:19
Finish
26.22 mi14:38:353:47:188:4110:24
10:12
-2:45

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

7:33 /mi

Average Pace

8:41 /mi

Slowest Pace

12:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:00

44% of race

Time at Steady Pace

1:00:03

26% of race

Time at Slower Pace

1:06:15

29% of race

Average Pace: 8:40 /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 mi11:14:5723:407:3723:40
7:37
#13271
10K
6.21 mi11:38:2547:087:3523:28
7:33
#12888
15K
9.32 mi12:02:171:11:007:3723:52
7:41
#13014
20K
12.43 mi12:27:031:35:467:4224:46
7:58
#13418
Half
13.11 mi12:32:171:41:007:425:14
7:40
#13396
25K
15.53 mi12:52:502:01:337:4920:33
8:29
#14079
30K
18.64 mi13:20:172:29:008:0027:27
8:50
#14664
20M
20.00 mi13:32:202:41:038:0312:03
8:52
#14770
21M
21.00 mi13:42:062:50:498:089:46
9:46
#14909
35K
21.75 mi13:49:292:58:128:127:23
9:52
#15250
23M
23.00 mi14:02:313:11:148:1913:02
10:25
#15773
24M
24.00 mi14:13:463:22:298:2611:15
11:15
#16457
40K
24.85 mi14:23:433:32:268:339:57
11:38
#17070
25.2M
25.20 mi14:28:113:36:548:364:28
12:57
#17324
Finish
26.22 mi14:38:353:47:188:4110:24
10:12
#17681
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi132719760976013315(Top 47%)9650(Top 60%)9650(Top 766%)
10K6.21 mi3.10 mi12888+3839572+1889572+18812589(Top 44%)9418(Top 58%)9418(Top 748%)
15K9.32 mi3.11 mi13014-1269582-109582-1013315(Top 47%)9650(Top 60%)9650(Top 766%)
20K12.43 mi3.11 mi13418-4049709-1279709-12714709(Top 52%)10184(Top 63%)10184(Top 809%)
Half13.11 mi0.68 mi13396+229691+189691+1813158(Top 46%)9557(Top 59%)9557(Top 759%)
25K15.53 mi2.42 mi14079-6839949-2589949-25817019(Top 60%)11110(Top 69%)11110(Top 882%)
30K18.64 mi3.11 mi14664-58510141-19210141-19216803(Top 59%)10835(Top 67%)10835(Top 861%)
20M20.00 mi1.36 mi14770-10610164-2310164-2316036(Top 56%)10386(Top 64%)10386(Top 825%)
21M21.00 mi1.00 mi14909-13910196-3210196-3217318(Top 61%)10834(Top 67%)10834(Top 861%)
35K21.75 mi0.75 mi15250-34110330-13410330-13421508(Top 76%)12668(Top 79%)12668(Top 1006%)
23M23.00 mi1.25 mi15773-52310493-16310493-16321753(Top 77%)12749(Top 79%)12749(Top 1013%)
24M24.00 mi1.00 mi16457-68410775-28210775-28224472(Top 86%)14046(Top 87%)14046(Top 1116%)
40K24.85 mi0.85 mi17070-61310997-22210997-22224358(Top 86%)13936(Top 87%)13936(Top 1107%)
25.2M25.20 mi0.35 mi17324-25411099-10211099-10224945(Top 88%)14217(Top 88%)14217(Top 1129%)
Finish26.22 mi1.02 mi17681-35711232-13311232-13323522(Top 83%)13520(Top 84%)13520(Top 1074%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

13315

Males

9650

M60-64

9650

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

12589

Males

9418

M60-64

9418

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

13315

Males

9650

M60-64

9650

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

14709

Males

10184

M60-64

10184

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

13158

Males

9557

M60-64

9557

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

17019

Males

11110

M60-64

11110

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16803

Males

10835

M60-64

10835

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

16036

Males

10386

M60-64

10386

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17318

Males

10834

M60-64

10834

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

21508

Males

12668

M60-64

12668

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

21753

Males

12749

M60-64

12749

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24472

Males

14046

M60-64

14046

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24358

Males

13936

M60-64

13936

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

24945

Males

14217

M60-64

14217

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

23522

Males

13520

M60-64

13520

Passing Analysis

Category:
Athletes Passed
1224
Passed By
5634
Net Change
-4410
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13271
5K → 10K510127+383#13271#12888
10K → 15K157283-126#12888#13014
15K → 20K99503-404#13014#13418
20K → Half4624+22#13418#13396
Half → 25K59742-683#13396#14079
25K → 30K111696-585#14079#14664
30K → 20M99205-106#14664#14770
20M → 21M69208-139#14770#14909
21M → 35K16357-341#14909#15250
35K → 23M29552-523#15250#15773
23M → 24M7691-684#15773#16457
24M → 40K7620-613#16457#17070
40K → 25.2M4258-254#17070#17324
25.2M → Finish11368-357#17324#17681
TOTALS12245634-4410
📊

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