Boston Marathon logo
BOSTON MARATHON 2023

Mark Van Der Vlugt

Bib: 30611•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
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
9:03/mi
28:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:58/mi
56:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:23:53
↑ 67↓ 78
20K· 12.43 mi
9:23/mi
1:53:03
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
1:59:30
↑ 19↓ 370.5%
25K· 15.53 mi
9:23/mi
2:22:15
↑ 66↓ 880.2%
30K· 18.64 mi
9:41/mi
2:52:19
↑ 181↓ 1480.2%
20M
10:26/mi
3:06:30
↑ 64↓ 500.2%
21M
11:25/mi
3:17:55
↑ 106↓ 241.6%
35K· 21.75 mi
10:00/mi
3:25:24
↑ 17↓ 861.7%
23M
10:57/mi
3:39:06
↑ 23↓ 630.6%
24M
10:47/mi
3:49:53
↓ 821.3%
40K· 24.85 mi
10:42/mi
3:59:02
↓ 200.3%
25.2M
11:45/mi
4:03:05
↑ 13↓ 160.2%
Finish· 26.22 mi
9:57/mi
4:13:13
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:30
Pace9:07 /mi
2nd Half
Distance13.11 mi
Time2:13:43
Pace10:12 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:1728:079:0328:07
9:03
-
10K
6.21 mi12:15:1056:009:0127:53
8:58
-0:05
15K
9.32 mi12:43:031:23:539:0027:53
8:58
0:00
20K
12.43 mi13:12:131:53:039:0629:10
9:23
+0:25
Half
13.11 mi13:18:401:59:309:076:27
9:27
+0:04
25K
15.53 mi13:41:252:22:159:0922:45
9:23
-0:04
30K
18.64 mi14:11:292:52:199:1530:04
9:41
+0:18
20M
20.00 mi14:25:403:06:309:1914:11
10:26
+0:45
21M
21.00 mi14:37:053:17:559:2511:25
11:25
+0:59
35K
21.75 mi14:44:343:25:249:277:29
10:00
-1:25
23M
23.00 mi14:58:163:39:069:3213:42
10:57
+0:57
24M
24.00 mi15:09:033:49:539:3510:47
10:47
-0:10
40K
24.85 mi15:18:123:59:029:379:09
10:42
-0:05
25.2M
25.20 mi15:22:154:03:059:394:03
11:45
+1:03
Finish
26.22 mi15:32:234:13:139:4010:08
9:57
-1:48

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

8:58 /mi

Average Pace

9:40 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:15

56% of race

Time at Steady Pace

47:41

19% of race

Time at Slower Pace

1:03:17

25% of race

Average Pace: 9:39 /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 mi11:47:1728:079:0328:07
9:03
#20661
10K
6.21 mi12:15:1056:009:0127:53
8:58
#20688
15K
9.32 mi12:43:031:23:539:0027:53
8:58
#20570
20K
12.43 mi13:12:131:53:039:0629:10
9:23
#20766
Half
13.11 mi13:18:401:59:309:076:27
9:27
#20843
25K
15.53 mi13:41:252:22:159:0922:45
9:23
#20791
30K
18.64 mi14:11:292:52:199:1530:04
9:41
#20618
20M
20.00 mi14:25:403:06:309:1914:11
10:26
#20683
21M
21.00 mi14:37:053:17:559:2511:25
11:25
#20773
35K
21.75 mi14:44:343:25:249:277:29
10:00
#20781
23M
23.00 mi14:58:163:39:069:3213:42
10:57
#20879
24M
24.00 mi15:09:033:49:539:3510:47
10:47
#20982
40K
24.85 mi15:18:123:59:029:379:09
10:42
#21009
25.2M
25.20 mi15:22:154:03:059:394:03
11:45
#21037
Finish
26.22 mi15:32:234:13:139:4010:08
9:57
#21052
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20661124371243720384(Top 77%)12473(Top 82%)12473(Top 554%)
10K6.21 mi3.10 mi20688-2712529-9212529-9220771(Top 78%)12618(Top 83%)12618(Top 560%)
15K9.32 mi3.11 mi20570+11812491+3812491+3820384(Top 77%)12473(Top 82%)12473(Top 554%)
20K12.43 mi3.11 mi20766-19612602-11112602-11121215(Top 80%)12843(Top 85%)12843(Top 570%)
Half13.11 mi0.68 mi20843-7712638-3612638-3621958(Top 82%)13172(Top 87%)13172(Top 585%)
25K15.53 mi2.42 mi20791+5212628+1012628+1020453(Top 77%)12472(Top 82%)12472(Top 554%)
30K18.64 mi3.11 mi20618+17312530+9812530+9820059(Top 75%)12240(Top 81%)12240(Top 544%)
20M20.00 mi1.36 mi20683-6512543-1312543-1321580(Top 81%)12814(Top 84%)12814(Top 569%)
21M21.00 mi1.00 mi20773-9012581-3812581-3821712(Top 82%)12853(Top 85%)12853(Top 571%)
35K21.75 mi0.75 mi20781-812565+1612565+1621263(Top 80%)12606(Top 83%)12606(Top 560%)
23M23.00 mi1.25 mi20879-9812591-2612591-2622219(Top 83%)13017(Top 86%)13017(Top 578%)
24M24.00 mi1.00 mi20982-10312625-3412625-3422627(Top 85%)13167(Top 87%)13167(Top 585%)
40K24.85 mi0.85 mi21009-2712629-412629-421701(Top 82%)12690(Top 84%)12690(Top 563%)
25.2M25.20 mi0.35 mi21037-2812628+112628+122017(Top 83%)12850(Top 85%)12850(Top 571%)
Finish26.22 mi1.02 mi21052-1512635-712635-721600(Top 81%)12669(Top 83%)12669(Top 563%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20384

Males

12473

M45-49

12473

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20771

Males

12618

M45-49

12618

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20384

Males

12473

M45-49

12473

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21215

Males

12843

M45-49

12843

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21958

Males

13172

M45-49

13172

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20453

Males

12472

M45-49

12472

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

20059

Males

12240

M45-49

12240

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21580

Males

12814

M45-49

12814

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

21712

Males

12853

M45-49

12853

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21263

Males

12606

M45-49

12606

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22219

Males

13017

M45-49

13017

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

22627

Males

13167

M45-49

13167

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21701

Males

12690

M45-49

12690

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22017

Males

12850

M45-49

12850

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21600

Males

12669

M45-49

12669

Passing Analysis

Category:
Athletes Passed
1254
Passed By
1645
Net Change
-391
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20661
5K → 10K287314-27#20661#20688
10K → 15K239121+118#20688#20570
15K → 20K101297-196#20570#20766
20K → Half1289-77#20766#20843
Half → 25K12169+52#20843#20791
25K → 30K23158+173#20791#20618
30K → 20M46111-65#20618#20683
20M → 21M36126-90#20683#20773
21M → 35K3846-8#20773#20781
35K → 23M41139-98#20781#20879
23M → 24M22125-103#20879#20982
24M → 40K2653-27#20982#21009
40K → 25.2M1644-28#21009#21037
25.2M → Finish3853-15#21037#21052
TOTALS12541645-391
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing