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BOSTON MARATHON 2025

Francis Szostak

Bib: 18906•M

FL

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
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:06
Rank: #19309
Start → 5K
26:06 | 8:24/mi
10K· 6.21 mi
52:45
Rank: #19764 (-455)
5K → 10K
26:39 | 8:35/mi
15K· 9.32 mi
1:19:16
Rank: #19683 (+81)
10K → 15K
26:31 | 8:32/mi
20K· 12.43 mi
1:45:43
Rank: #19310 (+373)
15K → 20K
26:27 | 8:31/mi
Half· 13.11 mi
1:51:30
Rank: #19292 (+18)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:12:29
Rank: #19080 (+212)
Half → 25K
20:59 | 8:39/mi
30K· 18.64 mi
2:39:44
Rank: #18562 (+518)
25K → 30K
27:15 | 8:46/mi
20M
2:51:37
Rank: #18310 (+252)
30K → 20M
11:53 | 8:45/mi
21M
3:00:47
Rank: #18060 (+250)
20M → 21M
9:10 | 9:10/mi
35K· 21.75 mi
3:07:21
Rank: #18015 (+45)
21M → 35K
6:34 | 8:47/mi
23M
3:18:49
Rank: #17945 (+70)
35K → 23M
11:28 | 9:09/mi
24M
3:27:59
Rank: #17933 (+12)
23M → 24M
9:10 | 9:10/mi
40K· 24.85 mi
3:36:05
Rank: #17969 (-36)
24M → 40K
8:06 | 9:28/mi
25.2M
3:40:28
Rank: #18188 (-219)
40K → 25.2M
4:23 | 12:43/mi
Finish· 26.22 mi
3:53:47
Rank: #19092 (-904)
25.2M → Finish
13:19 | 13:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:30
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time2:02:17
Pace9:20 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1926:068:2426:06
8:24
-
10K
6.21 mi11:43:5852:458:2926:39
8:35
+0:11
15K
9.32 mi12:10:291:19:168:3026:31
8:32
-0:03
20K
12.43 mi12:36:561:45:438:3026:27
8:31
-0:01
Half
13.11 mi12:42:431:51:308:305:47
8:29
-0:02
25K
15.53 mi13:03:422:12:298:3220:59
8:39
+0:10
30K
18.64 mi13:30:572:39:448:3427:15
8:46
+0:07
20M
20.00 mi13:42:502:51:378:3511:53
8:45
-0:01
21M
21.00 mi13:52:003:00:478:379:10
9:10
+0:25
35K
21.75 mi13:58:343:07:218:376:34
8:47
-0:23
23M
23.00 mi14:10:023:18:498:3911:28
9:09
+0:22
24M
24.00 mi14:19:123:27:598:409:10
9:10
+0:01
40K
24.85 mi14:27:183:36:058:428:06
9:28
+0:18
25.2M
25.20 mi14:31:413:40:288:454:23
12:43
+3:15
Finish
26.22 mi14:45:003:53:478:5513:19
13:04
+0:21

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

8:24 /mi

Average Pace

8:55 /mi

Slowest Pace

13:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:36:05

92% of race

Time at Slower Pace

17:42

8% of race

Average Pace: 8:55 /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 mi11:17:1926:068:2426:06
8:24
#19309
10K
6.21 mi11:43:5852:458:2926:39
8:35
#19764
15K
9.32 mi12:10:291:19:168:3026:31
8:32
#19683
20K
12.43 mi12:36:561:45:438:3026:27
8:31
#19310
Half
13.11 mi12:42:431:51:308:305:47
8:29
#19292
25K
15.53 mi13:03:422:12:298:3220:59
8:39
#19080
30K
18.64 mi13:30:572:39:448:3427:15
8:46
#18562
20M
20.00 mi13:42:502:51:378:3511:53
8:45
#18310
21M
21.00 mi13:52:003:00:478:379:10
9:10
#18060
35K
21.75 mi13:58:343:07:218:376:34
8:47
#18015
23M
23.00 mi14:10:023:18:498:3911:28
9:09
#17945
24M
24.00 mi14:19:123:27:598:409:10
9:10
#17933
40K
24.85 mi14:27:183:36:058:428:06
9:28
#17969
25.2M
25.20 mi14:31:413:40:288:454:23
12:43
#18188
Finish
26.22 mi14:45:003:53:478:5513:19
13:04
#19092
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19309121661216619528(Top 69%)12286(Top 76%)12286(Top 976%)
10K6.21 mi3.10 mi19764-45512373-20712373-20720236(Top 71%)12581(Top 78%)12581(Top 999%)
15K9.32 mi3.11 mi19683+8112345+2812345+2819528(Top 69%)12286(Top 76%)12286(Top 976%)
20K12.43 mi3.11 mi19310+37312166+17912166+17918335(Top 65%)11760(Top 73%)11760(Top 934%)
Half13.11 mi0.68 mi19292+1812159+712159+719008(Top 67%)12048(Top 75%)12048(Top 957%)
25K15.53 mi2.42 mi19080+21212063+9612063+9618110(Top 64%)11578(Top 72%)11578(Top 920%)
30K18.64 mi3.11 mi18562+51811818+24511818+24516434(Top 58%)10687(Top 66%)10687(Top 849%)
20M20.00 mi1.36 mi18310+25211669+14911669+14915343(Top 54%)10079(Top 63%)10079(Top 801%)
21M21.00 mi1.00 mi18060+25011540+12911540+12914438(Top 51%)9549(Top 59%)9549(Top 758%)
35K21.75 mi0.75 mi18015+4511507+3311507+3317121(Top 60%)10669(Top 66%)10669(Top 847%)
23M23.00 mi1.25 mi17945+7011429+7811429+7817138(Top 60%)10573(Top 66%)10573(Top 840%)
24M24.00 mi1.00 mi17933+1211396+3311396+3318171(Top 64%)11003(Top 68%)11003(Top 874%)
40K24.85 mi0.85 mi17969-3611391+511391+518597(Top 65%)11124(Top 69%)11124(Top 884%)
25.2M25.20 mi0.35 mi18188-21911477-8611477-8624560(Top 86%)14035(Top 87%)14035(Top 1115%)
Finish26.22 mi1.02 mi19092-90411860-38311860-38327657(Top 97%)15651(Top 97%)15651(Top 1243%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19528

Males

12286

M60-64

12286

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

20236

Males

12581

M60-64

12581

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19528

Males

12286

M60-64

12286

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

18335

Males

11760

M60-64

11760

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

19008

Males

12048

M60-64

12048

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

18110

Males

11578

M60-64

11578

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

16434

Males

10687

M60-64

10687

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15343

Males

10079

M60-64

10079

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

14438

Males

9549

M60-64

9549

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

17121

Males

10669

M60-64

10669

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

17138

Males

10573

M60-64

10573

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

18171

Males

11003

M60-64

11003

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18597

Males

11124

M60-64

11124

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24560

Males

14035

M60-64

14035

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

27657

Males

15651

M60-64

15651

Passing Analysis

Category:
Athletes Passed
2480
Passed By
2263
Net Change
+217
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19309
5K → 10K105560-455#19309#19764
10K → 15K223142+81#19764#19683
15K → 20K41946+373#19683#19310
20K → Half4325+18#19310#19292
Half → 25K27664+212#19292#19080
25K → 30K54830+518#19080#18562
30K → 20M26412+252#18562#18310
20M → 21M2577+250#18310#18060
21M → 35K7429+45#18060#18015
35K → 23M13969+70#18015#17945
23M → 24M8371+12#17945#17933
24M → 40K4682-36#17933#17969
40K → 25.2M1220-219#17969#18188
25.2M → Finish2906-904#18188#19092
TOTALS24802263+217
📊

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