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BOSTON MARATHON 2025

Derek Surka

Bib: 8665•M

NM

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Masters (Masters Men)
#0 / 10463
Top 35%
Division (M50-54)
#0 / 1996
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:10
Rank: #8915
Start → 5K
22:10 | 7:08/mi
10K· 6.21 mi
44:21
Rank: #8924 (-9)
5K → 10K
22:11 | 7:08/mi
15K· 9.32 mi
1:06:34
Rank: #8852 (+72)
10K → 15K
22:13 | 7:09/mi
20K· 12.43 mi
1:29:15
Rank: #8808 (+44)
15K → 20K
22:41 | 7:18/mi
Half· 13.11 mi
1:34:16
Rank: #8890 (-82)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:52:30
Rank: #9043 (-153)
Half → 25K
18:14 | 7:31/mi
30K· 18.64 mi
2:17:13
Rank: #9376 (-333)
25K → 30K
24:43 | 7:57/mi
20M
2:28:10
Rank: #9455 (-79)
30K → 20M
10:57 | 8:03/mi
21M
2:36:21
Rank: #9363 (+92)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:42:15
Rank: #9408 (-45)
21M → 35K
5:54 | 7:53/mi
23M
2:52:35
Rank: #9522 (-114)
35K → 23M
10:20 | 8:15/mi
24M
3:00:43
Rank: #9626 (-104)
23M → 24M
8:08 | 8:08/mi
40K· 24.85 mi
3:07:45
Rank: #9698 (-72)
24M → 40K
7:02 | 8:14/mi
25.2M
3:10:39
Rank: #9644 (+54)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:18:06
Rank: #9551 (+93)
25.2M → Finish
7:27 | 7:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:16
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:43:50
Pace7:55 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4922:107:0822:10
7:08
-
10K
6.21 mi11:10:0044:217:0822:11
7:08
0:00
15K
9.32 mi11:32:131:06:347:0922:13
7:09
+0:01
20K
12.43 mi11:54:541:29:157:1122:41
7:18
+0:09
Half
13.11 mi11:59:551:34:167:115:01
7:21
+0:03
25K
15.53 mi12:18:091:52:307:1518:14
7:31
+0:10
30K
18.64 mi12:42:522:17:137:2224:43
7:57
+0:26
20M
20.00 mi12:53:492:28:107:2410:57
8:03
+0:06
21M
21.00 mi13:02:002:36:217:278:11
8:11
+0:08
35K
21.75 mi13:07:542:42:157:285:54
7:53
-0:18
23M
23.00 mi13:18:142:52:357:3010:20
8:15
+0:22
24M
24.00 mi13:26:223:00:437:328:08
8:08
-0:07
40K
24.85 mi13:33:243:07:457:337:02
8:14
+0:06
25.2M
25.20 mi13:36:183:10:397:342:54
8:25
+0:11
Finish
26.22 mi13:43:453:18:067:347:27
7:19
-1:06

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

7:08 /mi

Average Pace

7:34 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:57

61% of race

Time at Steady Pace

1:18:09

39% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:47:4922:107:0822:10
7:08
#8915
10K
6.21 mi11:10:0044:217:0822:11
7:08
#8924
15K
9.32 mi11:32:131:06:347:0922:13
7:09
#8852
20K
12.43 mi11:54:541:29:157:1122:41
7:18
#8808
Half
13.11 mi11:59:551:34:167:115:01
7:21
#8890
25K
15.53 mi12:18:091:52:307:1518:14
7:31
#9043
30K
18.64 mi12:42:522:17:137:2224:43
7:57
#9376
20M
20.00 mi12:53:492:28:107:2410:57
8:03
#9455
21M
21.00 mi13:02:002:36:217:278:11
8:11
#9363
35K
21.75 mi13:07:542:42:157:285:54
7:53
#9408
23M
23.00 mi13:18:142:52:357:3010:20
8:15
#9522
24M
24.00 mi13:26:223:00:437:328:08
8:08
#9626
40K
24.85 mi13:33:243:07:457:337:02
8:14
#9698
25.2M
25.20 mi13:36:183:10:397:342:54
8:25
#9644
Finish
26.22 mi13:43:453:18:067:347:27
7:19
#9551
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi8915756175618706(Top 31%)7377(Top 46%)7377(Top 370%)
10K6.21 mi3.10 mi8924-97546+157546+158992(Top 32%)7598(Top 47%)7598(Top 381%)
15K9.32 mi3.11 mi8852+727498+487498+488706(Top 31%)7377(Top 46%)7377(Top 370%)
20K12.43 mi3.11 mi8808+447450+487450+489054(Top 32%)7479(Top 46%)7479(Top 375%)
Half13.11 mi0.68 mi8890-827492-427492-4210409(Top 37%)8222(Top 51%)8222(Top 412%)
25K15.53 mi2.42 mi9043-1537549-577549-5710121(Top 36%)7946(Top 49%)7946(Top 398%)
30K18.64 mi3.11 mi9376-3337681-1327681-13211053(Top 39%)8208(Top 51%)8208(Top 411%)
20M20.00 mi1.36 mi9455-797677+47677+410805(Top 38%)7939(Top 49%)7939(Top 398%)
21M21.00 mi1.00 mi9363+927600+777600+778464(Top 30%)6524(Top 41%)6524(Top 327%)
35K21.75 mi0.75 mi9408-457605-57605-511413(Top 40%)8047(Top 50%)8047(Top 403%)
23M23.00 mi1.25 mi9522-1147632-277632-2711708(Top 41%)8089(Top 50%)8089(Top 405%)
24M24.00 mi1.00 mi9626-1047646-147646-1412104(Top 43%)8210(Top 51%)8210(Top 411%)
40K24.85 mi0.85 mi9698-727646764611683(Top 41%)7899(Top 49%)7899(Top 396%)
25.2M25.20 mi0.35 mi9644+547598+487598+488223(Top 29%)6047(Top 38%)6047(Top 303%)
Finish26.22 mi1.02 mi9551+937504+947504+947843(Top 28%)5821(Top 36%)5821(Top 292%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8706

Males

7377

M50-54

7377

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8992

Males

7598

M50-54

7598

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8706

Males

7377

M50-54

7377

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9054

Males

7479

M50-54

7479

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10409

Males

8222

M50-54

8222

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

10121

Males

7946

M50-54

7946

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

11053

Males

8208

M50-54

8208

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10805

Males

7939

M50-54

7939

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8464

Males

6524

M50-54

6524

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

11413

Males

8047

M50-54

8047

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11708

Males

8089

M50-54

8089

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

12104

Males

8210

M50-54

8210

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11683

Males

7899

M50-54

7899

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8223

Males

6047

M50-54

6047

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7843

Males

5821

M50-54

5821

Passing Analysis

Category:
Athletes Passed
1485
Passed By
2121
Net Change
-636
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8915
5K → 10K210219-9#8915#8924
10K → 15K201129+72#8924#8852
15K → 20K193149+44#8852#8808
20K → Half1092-82#8808#8890
Half → 25K110263-153#8890#9043
25K → 30K127460-333#9043#9376
30K → 20M84163-79#9376#9455
20M → 21M13341+92#9455#9363
21M → 35K4893-45#9363#9408
35K → 23M74188-114#9408#9522
23M → 24M54158-104#9522#9626
24M → 40K50122-72#9626#9698
40K → 25.2M6410+54#9698#9644
25.2M → Finish12734+93#9644#9551
TOTALS14852121-636
📊

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