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BOSTON MARATHON 2023

William Lesmana

Bib: 8497 M ID

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M40-44)
#0 / 2241
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:25/mi
19:55
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:36/mi
40:26
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:39/mi
1:01:05
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:41/mi
1:21:50
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:30/mi
1:26:16
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:41/mi
1:42:29
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:58/mi
2:04:07
↑ 181↓ 1480.2%
138 ft elev
20M
7:12/mi
2:13:54
↑ 64↓ 500.2%
148 ft elev
21M
7:42/mi
2:21:36
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:00/mi
2:26:50
↑ 17↓ 861.7%
156 ft elev
23M
7:21/mi
2:36:02
↑ 23↓ 630.6%
116 ft elev
24M
7:11/mi
2:43:13
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:28/mi
2:49:36
↓ 200.3%
20 ft elev
25.2M
8:01/mi
2:52:22
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:09/mi
2:59:39
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:26:166:35 /mi⚡ faster
2nd Half
1:33:237:07 /mi+8.2%
Positive split — 8.2% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:44:5819:556:2519:55
6:25
-
10K
6.21 mi11:05:2940:266:3020:31
6:36
+0:11
15K
9.32 mi11:26:081:01:056:3320:39
6:39
+0:03
20K
12.43 mi11:46:531:21:506:3520:45
6:41
+0:02
Half
13.11 mi11:51:191:26:166:354:26
6:30
-0:11
25K
15.53 mi12:07:321:42:296:3616:13
6:41
+0:11
30K
18.64 mi12:29:102:04:076:3921:38
6:58
+0:17
20M
20.00 mi12:38:572:13:546:429:47
7:12
+0:14
21M
21.00 mi12:46:392:21:366:457:42
7:42
+0:30
35K
21.75 mi12:51:532:26:506:455:14
7:00
-0:42
23M
23.00 mi13:01:052:36:026:479:12
7:21
+0:21
24M
24.00 mi13:08:162:43:136:487:11
7:11
-0:10
40K
24.85 mi13:14:392:49:366:496:23
7:28
+0:17
25.2M
25.20 mi13:17:252:52:226:502:46
8:01
+0:33
Finish
26.22 mi13:24:422:59:396:517:17
7:09
-0:52

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

6:25 /mi

Average Pace

6:51 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:29

57% of race

Time at Steady Pace

51:07

28% of race

Time at Slower Pace

26:03

15% of race

Average Pace: 6:51 /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 mi10:44:5819:556:2519:55
6:25
#1860
10K
6.21 mi11:05:2940:266:3020:31
6:36
#2553
15K
9.32 mi11:26:081:01:056:3320:39
6:39
#2847
20K
12.43 mi11:46:531:21:506:3520:45
6:41
#2974
Half
13.11 mi11:51:191:26:166:354:26
6:30
#2955
25K
15.53 mi12:07:321:42:296:3616:13
6:41
#2974
30K
18.64 mi12:29:102:04:076:3921:38
6:58
#3099
20M
20.00 mi12:38:572:13:546:429:47
7:12
#3255
21M
21.00 mi12:46:392:21:366:457:42
7:42
#3389
35K
21.75 mi12:51:532:26:506:455:14
7:00
#3464
23M
23.00 mi13:01:052:36:026:479:12
7:21
#3599
24M
24.00 mi13:08:162:43:136:487:11
7:11
#3740
40K
24.85 mi13:14:392:49:366:496:23
7:28
#3878
25.2M
25.20 mi13:17:252:52:226:502:46
8:01
#3943
Finish
26.22 mi13:24:422:59:396:517:17
7:09
#4096
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi186017751775367134623462
10K6.21 mi3.10 mi2553-6932435-6602435-660352633393339
15K9.32 mi3.11 mi2847-2942718-2832718-283367134623462
20K12.43 mi3.11 mi2974-1272839-1212839-121341432373237
Half13.11 mi0.68 mi2955+192822+172822+17283127152715
25K15.53 mi2.42 mi2974-192841-192841-19328631263126
30K18.64 mi3.11 mi3099-1252953-1122953-112409838253825
20M20.00 mi1.36 mi3255-1563088-1353088-135508246044604
21M21.00 mi1.00 mi3389-1343210-1223210-122557648774877
35K21.75 mi0.75 mi3464-753281-713281-71526546934693
23M23.00 mi1.25 mi3599-1353398-1173398-117553248554855
24M24.00 mi1.00 mi3740-1413519-1213519-121561548474847
40K24.85 mi0.85 mi3878-1383639-1203639-120644752935293
25.2M25.20 mi0.35 mi3943-653692-533692-53652152475247
Finish26.22 mi1.02 mi4096-1533831-1393831-139605849654965

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3671

Males

3462

M40-44

3462

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3526

Males

3339

M40-44

3339

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3671

Males

3462

M40-44

3462

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3414

Males

3237

M40-44

3237

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

2831

Males

2715

M40-44

2715

Half→25K

13.1 - 15.5 mi

Top 12%
×4story building
+66ft-88ft

Overall

3286

Males

3126

M40-44

3126

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

4098

Males

3825

M40-44

3825

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5082

Males

4604

M40-44

4604

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5576

Males

4877

M40-44

4877

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5265

Males

4693

M40-44

4693

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5532

Males

4855

M40-44

4855

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5615

Males

4847

M40-44

4847

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6447

Males

5293

M40-44

5293

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6521

Males

5247

M40-44

5247

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6058

Males

4965

M40-44

4965

Passing Analysis

Category:
Athletes Passed
345
Passed By
2581
Net Change
-2236
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1860
5K → 10K6699-693#1860#2553
10K → 15K18312-294#2553#2847
15K → 20K34161-127#2847#2974
20K → Half3011+19#2974#2955
Half → 25K5776-19#2955#2974
25K → 30K55180-125#2974#3099
30K → 20M18174-156#3099#3255
20M → 21M16150-134#3255#3389
21M → 35K1691-75#3389#3464
35K → 23M34169-135#3464#3599
23M → 24M13154-141#3599#3740
24M → 40K23161-138#3740#3878
40K → 25.2M1277-65#3878#3943
25.2M → Finish13166-153#3943#4096
TOTALS3452581-2236

Passing Charts

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