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BOSTON MARATHON 2025

Felix Stellmaszek

Bib: 25702•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:44
Rank: #20479
Start → 5K
26:44 | 8:36/mi
10K· 6.21 mi
52:42
Rank: #19721 (+758)
5K → 10K
25:58 | 8:21/mi
15K· 9.32 mi
1:19:15
Rank: #19667 (+54)
10K → 15K
26:33 | 8:33/mi
20K· 12.43 mi
1:46:46
Rank: #19832 (-165)
15K → 20K
27:31 | 8:51/mi
Half· 13.11 mi
1:52:34
Rank: #19799 (+33)
20K → Half
5:48 | 8:30/mi
25K· 15.53 mi
2:14:56
Rank: #19981 (-182)
Half → 25K
22:22 | 9:13/mi
30K· 18.64 mi
2:45:32
Rank: #20284 (-303)
25K → 30K
30:36 | 9:51/mi
20M
2:59:21
Rank: #20401 (-117)
30K → 20M
13:49 | 10:10/mi
21M
3:10:01
Rank: #20422 (-21)
20M → 21M
10:40 | 10:40/mi
35K· 21.75 mi
3:17:12
Rank: #20446 (-24)
21M → 35K
7:11 | 9:36/mi
23M
3:29:34
Rank: #20428 (+18)
35K → 23M
12:22 | 9:53/mi
24M
3:39:20
Rank: #20467 (-39)
23M → 24M
9:46 | 9:46/mi
40K· 24.85 mi
3:47:58
Rank: #20498 (-31)
24M → 40K
8:38 | 10:06/mi
25.2M
3:51:40
Rank: #20506 (-8)
40K → 25.2M
3:42 | 10:44/mi
Finish· 26.22 mi
4:01:16
Rank: #20540 (-34)
25.2M → Finish
9:36 | 9:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:34
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time2:08:42
Pace9:49 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:1326:448:3626:44
8:36
-
10K
6.21 mi12:08:1152:428:2925:58
8:21
-0:15
15K
9.32 mi12:34:441:19:158:3026:33
8:33
+0:12
20K
12.43 mi13:02:151:46:468:3527:31
8:51
+0:18
Half
13.11 mi13:08:031:52:348:355:48
8:30
-0:21
25K
15.53 mi13:30:252:14:568:4122:22
9:13
+0:43
30K
18.64 mi14:01:012:45:328:5330:36
9:51
+0:38
20M
20.00 mi14:14:502:59:218:5813:49
10:10
+0:19
21M
21.00 mi14:25:303:10:019:0310:40
10:40
+0:30
35K
21.75 mi14:32:413:17:129:047:11
9:36
-1:04
23M
23.00 mi14:45:033:29:349:0712:22
9:53
+0:17
24M
24.00 mi14:54:493:39:209:089:46
9:46
-0:07
40K
24.85 mi15:03:273:47:589:108:38
10:06
+0:20
25.2M
25.20 mi15:07:093:51:409:123:42
10:44
+0:38
Finish
26.22 mi15:16:454:01:169:139:36
9:25
-1:19

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

8:21 /mi

Average Pace

9:13 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:56

56% of race

Time at Steady Pace

1:09:31

29% of race

Time at Slower Pace

36:49

15% of race

Average Pace: 9:12 /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 mi11:42:1326:448:3626:44
8:36
#20479
10K
6.21 mi12:08:1152:428:2925:58
8:21
#19721
15K
9.32 mi12:34:441:19:158:3026:33
8:33
#19667
20K
12.43 mi13:02:151:46:468:3527:31
8:51
#19832
Half
13.11 mi13:08:031:52:348:355:48
8:30
#19799
25K
15.53 mi13:30:252:14:568:4122:22
9:13
#19981
30K
18.64 mi14:01:012:45:328:5330:36
9:51
#20284
20M
20.00 mi14:14:502:59:218:5813:49
10:10
#20401
21M
21.00 mi14:25:303:10:019:0310:40
10:40
#20422
35K
21.75 mi14:32:413:17:129:047:11
9:36
#20446
23M
23.00 mi14:45:033:29:349:0712:22
9:53
#20428
24M
24.00 mi14:54:493:39:209:089:46
9:46
#20467
40K
24.85 mi15:03:273:47:589:108:38
10:06
#20498
25.2M
25.20 mi15:07:093:51:409:123:42
10:44
#20506
Finish
26.22 mi15:16:454:01:169:139:36
9:25
#20540
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20479126311263119604(Top 69%)12327(Top 77%)12327(Top 517%)
10K6.21 mi3.10 mi19721+75812352+27912352+27918920(Top 67%)12033(Top 75%)12033(Top 504%)
15K9.32 mi3.11 mi19667+5412339+1312339+1319604(Top 69%)12327(Top 77%)12327(Top 517%)
20K12.43 mi3.11 mi19832-16512395-5612395-5620248(Top 71%)12574(Top 78%)12574(Top 527%)
Half13.11 mi0.68 mi19799+3312381+1412381+1419190(Top 68%)12138(Top 75%)12138(Top 509%)
25K15.53 mi2.42 mi19981-18212456-7512456-7520864(Top 73%)12794(Top 79%)12794(Top 536%)
30K18.64 mi3.11 mi20284-30312538-8212538-8221149(Top 74%)12779(Top 79%)12779(Top 536%)
20M20.00 mi1.36 mi20401-11712564-2612564-2621466(Top 76%)12799(Top 79%)12799(Top 536%)
21M21.00 mi1.00 mi20422-2112557+712557+720496(Top 72%)12259(Top 76%)12259(Top 514%)
35K21.75 mi0.75 mi20446-2412554+312554+320666(Top 73%)12278(Top 76%)12278(Top 515%)
23M23.00 mi1.25 mi20428+1812524+3012524+3020058(Top 71%)11926(Top 74%)11926(Top 500%)
24M24.00 mi1.00 mi20467-3912529-512529-520603(Top 73%)12160(Top 76%)12160(Top 510%)
40K24.85 mi0.85 mi20498-3112524+512524+520763(Top 73%)12165(Top 76%)12165(Top 510%)
25.2M25.20 mi0.35 mi20506-812520+412520+419804(Top 70%)11702(Top 73%)11702(Top 490%)
Finish26.22 mi1.02 mi20540-3412523-312523-320883(Top 74%)12232(Top 76%)12232(Top 513%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19604

Males

12327

M45-49

12327

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18920

Males

12033

M45-49

12033

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19604

Males

12327

M45-49

12327

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20248

Males

12574

M45-49

12574

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19190

Males

12138

M45-49

12138

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

20864

Males

12794

M45-49

12794

25K→30K

15.5 - 18.6 mi

Top 74%
×9stories
+181ft-148ft

Overall

21149

Males

12779

M45-49

12779

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

21466

Males

12799

M45-49

12799

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20496

Males

12259

M45-49

12259

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

20666

Males

12278

M45-49

12278

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20058

Males

11926

M45-49

11926

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

20603

Males

12160

M45-49

12160

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20763

Males

12165

M45-49

12165

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19804

Males

11702

M45-49

11702

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

20883

Males

12232

M45-49

12232

Passing Analysis

Category:
Athletes Passed
1944
Passed By
2005
Net Change
-61
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20479
5K → 10K83173+758#20479#19721
10K → 15K212158+54#19721#19667
15K → 20K153318-165#19667#19832
20K → Half5421+33#19832#19799
Half → 25K110292-182#19799#19981
25K → 30K139442-303#19981#20284
30K → 20M74191-117#20284#20401
20M → 21M7697-21#20401#20422
21M → 35K5377-24#20422#20446
35K → 23M9577+18#20446#20428
23M → 24M4079-39#20428#20467
24M → 40K4879-31#20467#20498
40K → 25.2M2331-8#20498#20506
25.2M → Finish3670-34#20506#20540
TOTALS19442005-61
📊

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