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BOSTON MARATHON 2023

Len Von Morze

Bib: 10513•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 39%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 43%
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
7:49/mi
24:17
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
47:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:37/mi
1:11:21
↑ 67↓ 78
20K· 12.43 mi
7:39/mi
1:35:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:40:17
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:58:53
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:23:29
↑ 181↓ 1480.2%
20M
7:57/mi
2:34:17
↑ 64↓ 500.2%
21M
8:18/mi
2:42:35
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:48:30
↑ 17↓ 861.7%
23M
8:10/mi
2:58:44
↑ 23↓ 630.6%
24M
7:56/mi
3:06:40
↓ 821.3%
40K· 24.85 mi
7:57/mi
3:13:28
↓ 200.3%
25.2M
8:30/mi
3:16:24
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:23:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:17
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:43:40
Pace7:54 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4124:177:4924:17
7:49
-
10K
6.21 mi11:14:0647:427:4123:25
7:32
-0:17
15K
9.32 mi11:37:451:11:217:3923:39
7:37
+0:05
20K
12.43 mi12:01:301:35:067:3923:45
7:39
+0:02
Half
13.11 mi12:06:411:40:177:395:11
7:36
-0:03
25K
15.53 mi12:25:171:58:537:3918:36
7:40
+0:04
30K
18.64 mi12:49:532:23:297:4224:36
7:55
+0:15
20M
20.00 mi13:00:412:34:177:4310:48
7:57
+0:02
21M
21.00 mi13:08:592:42:357:458:18
8:18
+0:21
35K
21.75 mi13:14:542:48:307:455:55
7:55
-0:23
23M
23.00 mi13:25:082:58:447:4610:14
8:10
+0:15
24M
24.00 mi13:33:043:06:407:477:56
7:56
-0:14
40K
24.85 mi13:39:523:13:287:476:48
7:57
+0:01
25.2M
25.20 mi13:42:483:16:247:482:56
8:30
+0:33
Finish
26.22 mi13:50:213:23:577:477:33
7:25
-1:05

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

7:25 /mi

Average Pace

7:47 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:29

89% of race

Time at Steady Pace

21:28

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:47 /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 mi10:50:4124:177:4924:17
7:49
#12485
10K
6.21 mi11:14:0647:427:4123:25
7:32
#11574
15K
9.32 mi11:37:451:11:217:3923:39
7:37
#11399
20K
12.43 mi12:01:301:35:067:3923:45
7:39
#11124
Half
13.11 mi12:06:411:40:177:395:11
7:36
#11120
25K
15.53 mi12:25:171:58:537:3918:36
7:40
#10924
30K
18.64 mi12:49:532:23:297:4224:36
7:55
#10746
20M
20.00 mi13:00:412:34:177:4310:48
7:57
#10673
21M
21.00 mi13:08:592:42:357:458:18
8:18
#10553
35K
21.75 mi13:14:542:48:307:455:55
7:55
#10550
23M
23.00 mi13:25:082:58:447:4610:14
8:10
#10570
24M
24.00 mi13:33:043:06:407:477:56
7:56
#10564
40K
24.85 mi13:39:523:13:287:476:48
7:57
#10506
25.2M
25.20 mi13:42:483:16:247:482:56
8:30
#10487
Finish
26.22 mi13:50:213:23:577:477:33
7:25
#10333
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi124859314931411113(Top 42%)8682(Top 57%)8682(Top 386%)
10K6.21 mi3.10 mi11574+9118915+3998915+39910761(Top 40%)8562(Top 56%)8562(Top 380%)
15K9.32 mi3.11 mi11399+1758836+798836+7911113(Top 42%)8682(Top 57%)8682(Top 386%)
20K12.43 mi3.11 mi11124+2758716+1208716+12010454(Top 39%)8318(Top 55%)8318(Top 369%)
Half13.11 mi0.68 mi11120+48707+98707+910936(Top 41%)8575(Top 57%)8575(Top 381%)
25K15.53 mi2.42 mi10924+1968594+1138594+11310069(Top 38%)8027(Top 53%)8027(Top 356%)
30K18.64 mi3.11 mi10746+1788457+1378457+13710262(Top 39%)7965(Top 52%)7965(Top 354%)
20M20.00 mi1.36 mi10673+738388+698388+699876(Top 37%)7687(Top 51%)7687(Top 341%)
21M21.00 mi1.00 mi10553+1208312+768312+769228(Top 35%)7200(Top 47%)7200(Top 320%)
35K21.75 mi0.75 mi10550+38287+258287+2511416(Top 43%)8306(Top 55%)8306(Top 369%)
23M23.00 mi1.25 mi10570-208265+228265+2210966(Top 41%)7947(Top 52%)7947(Top 353%)
24M24.00 mi1.00 mi10564+68235+308235+3010752(Top 40%)7775(Top 51%)7775(Top 345%)
40K24.85 mi0.85 mi10506+588174+618174+619713(Top 36%)7191(Top 47%)7191(Top 319%)
25.2M25.20 mi0.35 mi10487+198159+158159+159513(Top 36%)7039(Top 46%)7039(Top 313%)
Finish26.22 mi1.02 mi10333+1548052+1078052+1077850(Top 29%)6085(Top 40%)6085(Top 270%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11113

Males

8682

M45-49

8682

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10761

Males

8562

M45-49

8562

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11113

Males

8682

M45-49

8682

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10454

Males

8318

M45-49

8318

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10936

Males

8575

M45-49

8575

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10069

Males

8027

M45-49

8027

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10262

Males

7965

M45-49

7965

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9876

Males

7687

M45-49

7687

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9228

Males

7200

M45-49

7200

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11416

Males

8306

M45-49

8306

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10966

Males

7947

M45-49

7947

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10752

Males

7775

M45-49

7775

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9713

Males

7191

M45-49

7191

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9513

Males

7039

M45-49

7039

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7850

Males

6085

M45-49

6085

Passing Analysis

Category:
Athletes Passed
2860*
Passed By
708
Net Change
+2152
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12485
5K → 10K97362+911#12485#11574
10K → 15K288113+175#11574#11399
15K → 20K31641+275#11399#11124
20K → Half2824+4#11124#11120
Half → 25K22832+196#11120#10924
25K → 30K27092+178#10924#10746
30K → 20M115*42+73#10746#10673
20M → 21M13919+120#10673#10553
21M → 35K4845+3#10553#10550
35K → 23M7696-20#10550#10570
23M → 24M7165+6#10570#10564
24M → 40K9739+58#10564#10506
40K → 25.2M3920+19#10506#10487
25.2M → Finish17218+154#10487#10333
TOTALS2860*708+2152

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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