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BOSTON MARATHON 2023

Sjouke Wolters

Bib: 30413•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
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
9:21/mi
29:03
↑ 97↓ 3451.5%
10K· 6.21 mi
8:52/mi
56:36
↑ 79↓ 1380.4%
15K· 9.32 mi
8:52/mi
1:24:10
↑ 67↓ 78
20K· 12.43 mi
9:03/mi
1:52:17
↑ 106↓ 860.1%
Half· 13.11 mi
8:51/mi
1:58:19
↑ 19↓ 370.5%
25K· 15.53 mi
9:18/mi
2:20:53
↑ 66↓ 880.2%
30K· 18.64 mi
9:45/mi
2:51:10
↑ 181↓ 1480.2%
20M
9:58/mi
3:04:43
↑ 64↓ 500.2%
21M
10:56/mi
3:15:39
↑ 106↓ 241.6%
35K· 21.75 mi
9:24/mi
3:22:41
↑ 17↓ 861.7%
23M
9:53/mi
3:35:03
↑ 23↓ 630.6%
24M
9:52/mi
3:44:55
↓ 821.3%
40K· 24.85 mi
10:04/mi
3:53:31
↓ 200.3%
25.2M
10:44/mi
3:57:13
↑ 13↓ 160.2%
Finish· 26.22 mi
9:37/mi
4:07:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:19
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:08:42
Pace9:49 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:3929:039:2129:03
9:21
-
10K
6.21 mi12:15:1256:369:0727:33
8:52
-0:29
15K
9.32 mi12:42:461:24:109:0227:34
8:52
0:00
20K
12.43 mi13:10:531:52:179:0228:07
9:03
+0:11
Half
13.11 mi13:16:551:58:199:026:02
8:51
-0:12
25K
15.53 mi13:39:292:20:539:0422:34
9:18
+0:27
30K
18.64 mi14:09:462:51:109:1130:17
9:45
+0:27
20M
20.00 mi14:23:193:04:439:1413:33
9:58
+0:13
21M
21.00 mi14:34:153:15:399:1910:56
10:56
+0:58
35K
21.75 mi14:41:173:22:419:197:02
9:24
-1:32
23M
23.00 mi14:53:393:35:039:2112:22
9:53
+0:29
24M
24.00 mi15:03:313:44:559:229:52
9:52
-0:01
40K
24.85 mi15:12:073:53:319:248:36
10:04
+0:12
25.2M
25.20 mi15:15:493:57:139:253:42
10:44
+0:40
Finish
26.22 mi15:25:374:07:019:269:48
9:37
-1:07

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

8:51 /mi

Average Pace

9:26 /mi

Slowest Pace

10:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:50

45% of race

Time at Steady Pace

1:38:24

40% of race

Time at Slower Pace

36:47

15% of race

Average Pace: 9:25 /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 mi11:47:3929:039:2129:03
9:21
#21675
10K
6.21 mi12:15:1256:369:0727:33
8:52
#21094
15K
9.32 mi12:42:461:24:109:0227:34
8:52
#20705
20K
12.43 mi13:10:531:52:179:0228:07
9:03
#20514
Half
13.11 mi13:16:551:58:199:026:02
8:51
#20473
25K
15.53 mi13:39:292:20:539:0422:34
9:18
#20432
30K
18.64 mi14:09:462:51:109:1130:17
9:45
#20388
20M
20.00 mi14:23:193:04:439:1413:33
9:58
#20386
21M
21.00 mi14:34:153:15:399:1910:56
10:56
#20391
35K
21.75 mi14:41:173:22:419:197:02
9:24
#20340
23M
23.00 mi14:53:393:35:039:2112:22
9:53
#20304
24M
24.00 mi15:03:313:44:559:229:52
9:52
#20302
40K
24.85 mi15:12:073:53:319:248:36
10:04
#20281
25.2M
25.20 mi15:15:493:57:139:253:42
10:44
#20271
Finish
26.22 mi15:25:374:07:019:269:48
9:37
#20269
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi21675129231292319913(Top 75%)12256(Top 81%)12256(Top 544%)
10K6.21 mi3.10 mi21094+58112708+21512708+21520261(Top 76%)12395(Top 82%)12395(Top 550%)
15K9.32 mi3.11 mi20705+38912557+15112557+15119913(Top 75%)12256(Top 81%)12256(Top 544%)
20K12.43 mi3.11 mi20514+19112487+7012487+7019923(Top 75%)12268(Top 81%)12268(Top 545%)
Half13.11 mi0.68 mi20473+4112471+1612471+1619704(Top 74%)12189(Top 80%)12189(Top 541%)
25K15.53 mi2.42 mi20432+4112462+912462+920219(Top 76%)12379(Top 82%)12379(Top 550%)
30K18.64 mi3.11 mi20388+4412423+3912423+3920279(Top 76%)12332(Top 81%)12332(Top 548%)
20M20.00 mi1.36 mi20386+212409+1412409+1420398(Top 77%)12299(Top 81%)12299(Top 546%)
21M21.00 mi1.00 mi20391-512399+1012399+1020668(Top 78%)12372(Top 82%)12372(Top 549%)
35K21.75 mi0.75 mi20340+5112364+3512364+3519535(Top 73%)11841(Top 78%)11841(Top 526%)
23M23.00 mi1.25 mi20304+3612342+2212342+2219631(Top 74%)11856(Top 78%)11856(Top 526%)
24M24.00 mi1.00 mi20302+212335+712335+720419(Top 77%)12184(Top 80%)12184(Top 541%)
40K24.85 mi0.85 mi20281+2112311+2412311+2420119(Top 76%)11978(Top 79%)11978(Top 532%)
25.2M25.20 mi0.35 mi20271+1012302+912302+919760(Top 74%)11812(Top 78%)11812(Top 525%)
Finish26.22 mi1.02 mi20269+212295+712295+720519(Top 77%)12195(Top 80%)12195(Top 542%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19913

Males

12256

M45-49

12256

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20261

Males

12395

M45-49

12395

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19913

Males

12256

M45-49

12256

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

19923

Males

12268

M45-49

12268

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19704

Males

12189

M45-49

12189

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20219

Males

12379

M45-49

12379

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

20279

Males

12332

M45-49

12332

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20398

Males

12299

M45-49

12299

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20668

Males

12372

M45-49

12372

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19535

Males

11841

M45-49

11841

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19631

Males

11856

M45-49

11856

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20419

Males

12184

M45-49

12184

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20119

Males

11978

M45-49

11978

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19760

Males

11812

M45-49

11812

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20519

Males

12195

M45-49

12195

Passing Analysis

Category:
Athletes Passed
2181
Passed By
775
Net Change
+1406
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21675
5K → 10K66786+581#21675#21094
10K → 15K43647+389#21094#20705
15K → 20K26978+191#20705#20514
20K → Half5110+41#20514#20473
Half → 25K12584+41#20473#20432
25K → 30K173129+44#20432#20388
30K → 20M7573+2#20388#20386
20M → 21M6873-5#20386#20391
21M → 35K7524+51#20391#20340
35K → 23M7943+36#20340#20304
23M → 24M4442+2#20304#20302
24M → 40K5332+21#20302#20281
40K → 25.2M2414+10#20281#20271
25.2M → Finish4240+2#20271#20269
TOTALS2181775+1406
📊

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