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BOSTON MARATHON 2023

Derek Surka

Bib: 9483•M

NM

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:55/mi
24:36
↑ 97↓ 3451.5%
10K· 6.21 mi
7:57/mi
49:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:59/mi
1:14:06
↑ 67↓ 78
20K· 12.43 mi
8:29/mi
1:40:28
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:46:00
↑ 19↓ 370.5%
25K· 15.53 mi
8:21/mi
2:06:14
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:32:34
↑ 181↓ 1480.2%
20M
8:27/mi
2:44:03
↑ 64↓ 500.2%
21M
8:43/mi
2:52:46
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:58:35
↑ 17↓ 861.7%
23M
8:29/mi
3:09:12
↑ 23↓ 630.6%
24M
8:12/mi
3:17:24
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:24:29
↓ 200.3%
25.2M
8:42/mi
3:27:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:56/mi
3:35:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:00
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:49:34
Pace8:21 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1724:367:5524:36
7:55
-
10K
6.21 mi11:14:5849:177:5624:41
7:57
+0:02
15K
9.32 mi11:39:471:14:067:5724:49
7:59
+0:02
20K
12.43 mi12:06:091:40:288:0526:22
8:29
+0:30
Half
13.11 mi12:11:411:46:008:055:32
8:07
-0:22
25K
15.53 mi12:31:552:06:148:0820:14
8:21
+0:14
30K
18.64 mi12:58:152:32:348:1126:20
8:29
+0:08
20M
20.00 mi13:09:442:44:038:1211:29
8:27
-0:02
21M
21.00 mi13:18:272:52:468:148:43
8:43
+0:16
35K
21.75 mi13:24:162:58:358:135:49
7:46
-0:57
23M
23.00 mi13:34:533:09:128:1410:37
8:29
+0:43
24M
24.00 mi13:43:053:17:248:148:12
8:12
-0:17
40K
24.85 mi13:50:103:24:298:147:05
8:17
+0:05
25.2M
25.20 mi13:53:103:27:298:143:00
8:42
+0:25
Finish
26.22 mi14:01:153:35:348:148:05
7:56
-0:46

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

7:46 /mi

Average Pace

8:14 /mi

Slowest Pace

8:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:51

95% of race

Time at Steady Pace

11:43

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi10:50:1724:367:5524:36
7:55
#13385
10K
6.21 mi11:14:5849:177:5624:41
7:57
#13824
15K
9.32 mi11:39:471:14:067:5724:49
7:59
#13971
20K
12.43 mi12:06:091:40:288:0526:22
8:29
#14748
Half
13.11 mi12:11:411:46:008:055:32
8:07
#14773
25K
15.53 mi12:31:552:06:148:0820:14
8:21
#14823
30K
18.64 mi12:58:152:32:348:1126:20
8:29
#14685
20M
20.00 mi13:09:442:44:038:1211:29
8:27
#14568
21M
21.00 mi13:18:272:52:468:148:43
8:43
#14386
35K
21.75 mi13:24:162:58:358:135:49
7:46
#14245
23M
23.00 mi13:34:533:09:128:1410:37
8:29
#14148
24M
24.00 mi13:43:053:17:248:148:12
8:12
#14060
40K
24.85 mi13:50:103:24:298:147:05
8:17
#13947
25.2M
25.20 mi13:53:103:27:298:143:00
8:42
#13893
Finish
26.22 mi14:01:153:35:348:148:05
7:56
#13792
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi133859705970514274(Top 54%)10014(Top 66%)10014(Top 488%)
10K6.21 mi3.10 mi13824-4399869-1649869-16414355(Top 54%)10062(Top 66%)10062(Top 490%)
15K9.32 mi3.11 mi13971-1479913-449913-4414274(Top 54%)10014(Top 66%)10014(Top 488%)
20K12.43 mi3.11 mi14748-77710204-29110204-29116756(Top 63%)10943(Top 72%)10943(Top 533%)
Half13.11 mi0.68 mi14773-2510213-910213-915155(Top 57%)10348(Top 68%)10348(Top 504%)
25K15.53 mi2.42 mi14823-5010204+910204+915210(Top 57%)10221(Top 67%)10221(Top 498%)
30K18.64 mi3.11 mi14685+13810124+8010124+8014142(Top 53%)9706(Top 64%)9706(Top 473%)
20M20.00 mi1.36 mi14568+11710038+8610038+8613316(Top 50%)9274(Top 61%)9274(Top 452%)
21M21.00 mi1.00 mi14386+1829942+969942+9611756(Top 44%)8472(Top 56%)8472(Top 413%)
35K21.75 mi0.75 mi14245+1419869+739869+7310473(Top 39%)7878(Top 52%)7878(Top 384%)
23M23.00 mi1.25 mi14148+979814+559814+5513077(Top 49%)8949(Top 59%)8949(Top 436%)
24M24.00 mi1.00 mi14060+889755+599755+5912578(Top 47%)8668(Top 57%)8668(Top 422%)
40K24.85 mi0.85 mi13947+1139690+659690+6511903(Top 45%)8282(Top 55%)8282(Top 404%)
25.2M25.20 mi0.35 mi13893+549657+339657+3310734(Top 40%)7691(Top 51%)7691(Top 375%)
Finish26.22 mi1.02 mi13792+1019609+489609+4811612(Top 44%)8105(Top 53%)8105(Top 395%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14274

Males

10014

M50-54

10014

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14355

Males

10062

M50-54

10062

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14274

Males

10014

M50-54

10014

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16756

Males

10943

M50-54

10943

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

15155

Males

10348

M50-54

10348

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15210

Males

10221

M50-54

10221

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14142

Males

9706

M50-54

9706

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

13316

Males

9274

M50-54

9274

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11756

Males

8472

M50-54

8472

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10473

Males

7878

M50-54

7878

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13077

Males

8949

M50-54

8949

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12578

Males

8668

M50-54

8668

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11903

Males

8282

M50-54

8282

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10734

Males

7691

M50-54

7691

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11612

Males

8105

M50-54

8105

Passing Analysis

Category:
Athletes Passed
1735
Passed By
2142
Net Change
-407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13385
5K → 10K123562-439#13385#13824
10K → 15K125272-147#13824#13971
15K → 20K51828-777#13971#14748
20K → Half1944-25#14748#14773
Half → 25K126176-50#14773#14823
25K → 30K23496+138#14823#14685
30K → 20M15336+117#14685#14568
20M → 21M19311+182#14568#14386
21M → 35K1421+141#14386#14245
35K → 23M14649+97#14245#14148
23M → 24M11123+88#14148#14060
24M → 40K12916+113#14060#13947
40K → 25.2M628+54#13947#13893
25.2M → Finish12120+101#13893#13792
TOTALS17352142-407
📊

Passing Visuals

Category:
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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