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BOSTON MARATHON 2023

René Van Den Berg

Bib: 16516•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
8:07/mi
25:12
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
50:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:06/mi
1:15:21
↑ 67↓ 78
20K· 12.43 mi
8:09/mi
1:40:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:46:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:13/mi
2:06:10
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:33:03
↑ 181↓ 1480.2%
20M
8:42/mi
2:44:52
↑ 64↓ 500.2%
21M
9:18/mi
2:54:10
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
3:00:35
↑ 17↓ 861.7%
23M
8:44/mi
3:11:31
↑ 23↓ 630.6%
24M
8:30/mi
3:20:01
↓ 821.3%
40K· 24.85 mi
8:40/mi
3:27:26
↓ 200.3%
25.2M
9:20/mi
3:30:39
↑ 13↓ 160.2%
Finish· 26.22 mi
8:34/mi
3:39:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:15
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:53:08
Pace8:38 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4225:128:0725:12
8:07
-
10K
6.21 mi11:40:4250:128:0525:00
8:03
-0:04
15K
9.32 mi12:05:511:15:218:0525:09
8:06
+0:03
20K
12.43 mi12:31:111:40:418:0625:20
8:09
+0:03
Half
13.11 mi12:36:451:46:158:065:34
8:10
+0:01
25K
15.53 mi12:56:402:06:108:0719:55
8:13
+0:03
30K
18.64 mi13:23:332:33:038:1326:53
8:39
+0:26
20M
20.00 mi13:35:222:44:528:1511:49
8:42
+0:03
21M
21.00 mi13:44:402:54:108:189:18
9:18
+0:36
35K
21.75 mi13:51:053:00:358:186:25
8:35
-0:43
23M
23.00 mi14:02:013:11:318:2010:56
8:44
+0:09
24M
24.00 mi14:10:313:20:018:208:30
8:30
-0:14
40K
24.85 mi14:17:563:27:268:217:25
8:40
+0:10
25.2M
25.20 mi14:21:093:30:398:223:13
9:20
+0:40
Finish
26.22 mi14:29:533:39:238:228:44
8:34
-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

8:03 /mi

Average Pace

8:22 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:52

94% of race

Time at Steady Pace

12:31

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:22 /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 mi11:15:4225:128:0725:12
8:07
#14788
10K
6.21 mi11:40:4250:128:0525:00
8:03
#14956
15K
9.32 mi12:05:511:15:218:0525:09
8:06
#15010
20K
12.43 mi12:31:111:40:418:0625:20
8:09
#14874
Half
13.11 mi12:36:451:46:158:065:34
8:10
#14909
25K
15.53 mi12:56:402:06:108:0719:55
8:13
#14793
30K
18.64 mi13:23:332:33:038:1326:53
8:39
#14886
20M
20.00 mi13:35:222:44:528:1511:49
8:42
#14857
21M
21.00 mi13:44:402:54:108:189:18
9:18
#14848
35K
21.75 mi13:51:053:00:358:186:25
8:35
#14869
23M
23.00 mi14:02:013:11:318:2010:56
8:44
#14840
24M
24.00 mi14:10:313:20:018:208:30
8:30
#14801
40K
24.85 mi14:17:563:27:268:217:25
8:40
#14753
25.2M
25.20 mi14:21:093:30:398:223:13
9:20
#14740
Finish
26.22 mi14:29:533:39:238:228:44
8:34
#14777
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14788102591025915122(Top 57%)10356(Top 68%)10356(Top 728%)
10K6.21 mi3.10 mi14956-16810312-5310312-5315134(Top 57%)10366(Top 68%)10366(Top 729%)
15K9.32 mi3.11 mi15010-5410320-810320-815122(Top 57%)10356(Top 68%)10356(Top 728%)
20K12.43 mi3.11 mi14874+13610254+6610254+6614620(Top 55%)10128(Top 67%)10128(Top 712%)
Half13.11 mi0.68 mi14909-3510260-610260-615450(Top 58%)10467(Top 69%)10467(Top 736%)
25K15.53 mi2.42 mi14793+11610192+6810192+6814326(Top 54%)9906(Top 65%)9906(Top 697%)
30K18.64 mi3.11 mi14886-9310197-510197-515228(Top 57%)10135(Top 67%)10135(Top 713%)
20M20.00 mi1.36 mi14857+2910164+3310164+3314813(Top 56%)9902(Top 65%)9902(Top 696%)
21M21.00 mi1.00 mi14848+910135+2910135+2914954(Top 56%)9907(Top 65%)9907(Top 697%)
35K21.75 mi0.75 mi14869-2110120+1510120+1515689(Top 59%)10144(Top 67%)10144(Top 713%)
23M23.00 mi1.25 mi14840+2910082+3810082+3814573(Top 55%)9614(Top 63%)9614(Top 676%)
24M24.00 mi1.00 mi14801+3910050+3210050+3214454(Top 54%)9507(Top 63%)9507(Top 669%)
40K24.85 mi0.85 mi14753+4810003+4710003+4714350(Top 54%)9392(Top 62%)9392(Top 660%)
25.2M25.20 mi0.35 mi14740+139987+169987+1614268(Top 54%)9361(Top 62%)9361(Top 658%)
Finish26.22 mi1.02 mi14777-379983+49983+415798(Top 59%)10082(Top 66%)10082(Top 709%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

15122

Males

10356

M55-59

10356

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

15134

Males

10366

M55-59

10366

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

15122

Males

10356

M55-59

10356

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14620

Males

10128

M55-59

10128

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15450

Males

10467

M55-59

10467

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

14326

Males

9906

M55-59

9906

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15228

Males

10135

M55-59

10135

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14813

Males

9902

M55-59

9902

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14954

Males

9907

M55-59

9907

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

15689

Males

10144

M55-59

10144

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

14573

Males

9614

M55-59

9614

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

14454

Males

9507

M55-59

9507

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14350

Males

9392

M55-59

9392

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14268

Males

9361

M55-59

9361

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15798

Males

10082

M55-59

10082

Passing Analysis

Category:
Athletes Passed
1551
Passed By
1540
Net Change
+11
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14788
5K → 10K225393-168#14788#14956
10K → 15K164218-54#14956#15010
15K → 20K246110+136#15010#14874
20K → Half2560-35#14874#14909
Half → 25K18468+116#14909#14793
25K → 30K143236-93#14793#14886
30K → 20M9162+29#14886#14857
20M → 21M8677+9#14857#14848
21M → 35K4667-21#14848#14869
35K → 23M10172+29#14869#14840
23M → 24M8041+39#14840#14801
24M → 40K7830+48#14801#14753
40K → 25.2M3724+13#14753#14740
25.2M → Finish4582-37#14740#14777
TOTALS15511540+11
📊

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