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BOSTON MARATHON 2023

Robin Hewson

Bib: 1529•M

RI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Division (M18-39)
#0 / 5285
Top 37%
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
6:35/mi
20:27
↑ 97↓ 3451.5%
10K· 6.21 mi
6:34/mi
40:51
↑ 79↓ 1380.4%
15K· 9.32 mi
6:39/mi
1:01:32
↑ 67↓ 78
20K· 12.43 mi
6:45/mi
1:22:31
↑ 106↓ 860.1%
Half· 13.11 mi
6:45/mi
1:27:07
↑ 19↓ 370.5%
25K· 15.53 mi
6:47/mi
1:43:35
↑ 66↓ 880.2%
30K· 18.64 mi
6:57/mi
2:05:11
↑ 181↓ 1480.2%
20M
6:56/mi
2:14:36
↑ 64↓ 500.2%
21M
6:58/mi
2:21:34
↑ 106↓ 241.6%
35K· 21.75 mi
6:25/mi
2:26:22
↑ 17↓ 861.7%
23M
6:26/mi
2:34:25
↑ 23↓ 630.6%
24M
6:17/mi
2:40:42
↓ 821.3%
40K· 24.85 mi
6:27/mi
2:46:13
↓ 200.3%
25.2M
6:58/mi
2:48:37
↑ 13↓ 160.2%
Finish· 26.22 mi
6:15/mi
2:54:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:07
Pace6:39 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:52
Pace6:42 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5720:276:3520:27
6:35
-
10K
6.21 mi10:41:2140:516:3420:24
6:34
-0:01
15K
9.32 mi11:02:021:01:326:3620:41
6:39
+0:05
20K
12.43 mi11:23:011:22:316:3820:59
6:45
+0:06
Half
13.11 mi11:27:371:27:076:394:36
6:45
0:00
25K
15.53 mi11:44:051:43:356:4016:28
6:47
+0:02
30K
18.64 mi12:05:412:05:116:4321:36
6:57
+0:10
20M
20.00 mi12:15:062:14:366:449:25
6:56
-0:01
21M
21.00 mi12:22:042:21:346:446:58
6:58
+0:02
35K
21.75 mi12:26:522:26:226:444:48
6:25
-0:33
23M
23.00 mi12:34:552:34:256:438:03
6:26
+0:01
24M
24.00 mi12:41:122:40:426:426:17
6:17
-0:09
40K
24.85 mi12:46:432:46:136:415:31
6:27
+0:10
25.2M
25.20 mi12:49:072:48:376:412:24
6:58
+0:31
Finish
26.22 mi12:55:292:54:596:416:22
6:15
-0:43

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

6:15 /mi

Average Pace

6:41 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:36

77% of race

Time at Steady Pace

40:23

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:40 /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 mi10:20:5720:276:3520:27
6:35
#2762
10K
6.21 mi10:41:2140:516:3420:24
6:34
#2972
15K
9.32 mi11:02:021:01:326:3620:41
6:39
#3219
20K
12.43 mi11:23:011:22:316:3820:59
6:45
#3382
Half
13.11 mi11:27:371:27:076:394:36
6:45
#3437
25K
15.53 mi11:44:051:43:356:4016:28
6:47
#3502
30K
18.64 mi12:05:412:05:116:4321:36
6:57
#3582
20M
20.00 mi12:15:062:14:366:449:25
6:56
#3542
21M
21.00 mi12:22:042:21:346:446:58
6:58
#3375
35K
21.75 mi12:26:522:26:226:444:48
6:25
#3299
23M
23.00 mi12:34:552:34:256:438:03
6:26
#3075
24M
24.00 mi12:41:122:40:426:426:17
6:17
#2949
40K
24.85 mi12:46:432:46:136:415:31
6:27
#2834
25.2M
25.20 mi12:49:072:48:376:412:24
6:58
#2788
Finish
26.22 mi12:55:292:54:596:416:22
6:15
#2687
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2762262726273769(Top 14%)3548(Top 23%)3548(Top 67%)
10K6.21 mi3.10 mi2972-2102835-2082835-2083267(Top 12%)3109(Top 20%)3109(Top 59%)
15K9.32 mi3.11 mi3219-2473063-2283063-2283769(Top 14%)3548(Top 23%)3548(Top 67%)
20K12.43 mi3.11 mi3382-1633208-1453208-1454045(Top 15%)3791(Top 25%)3791(Top 72%)
Half13.11 mi0.68 mi3437-553258-503258-504869(Top 18%)4501(Top 30%)4501(Top 85%)
25K15.53 mi2.42 mi3502-653322-643322-644098(Top 15%)3839(Top 25%)3839(Top 73%)
30K18.64 mi3.11 mi3582-803389-673389-674046(Top 15%)3776(Top 25%)3776(Top 71%)
20M20.00 mi1.36 mi3542+403350+393350+393630(Top 14%)3383(Top 22%)3383(Top 64%)
21M21.00 mi1.00 mi3375+1673196+1543196+1542038(Top 8%)1924(Top 13%)1924(Top 36%)
35K21.75 mi0.75 mi3299+763124+723124+722077(Top 8%)1970(Top 13%)1970(Top 37%)
23M23.00 mi1.25 mi3075+2242921+2032921+2031219(Top 5%)1150(Top 8%)1150(Top 22%)
24M24.00 mi1.00 mi2949+1262803+1182803+1181325(Top 5%)1253(Top 8%)1253(Top 24%)
40K24.85 mi0.85 mi2834+1152694+1092694+1091417(Top 5%)1336(Top 9%)1336(Top 25%)
25.2M25.20 mi0.35 mi2788+462649+452649+451700(Top 6%)1593(Top 10%)1593(Top 30%)
Finish26.22 mi1.02 mi2687+1012557+922557+921463(Top 5%)1382(Top 9%)1382(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3769

Males

3548

M18-39

3548

5K→10K

3.1 - 6.2 mi

Top 12%
×5story building
+79ft-138ft

Overall

3267

Males

3109

M18-39

3109

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3769

Males

3548

M18-39

3548

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

4045

Males

3791

M18-39

3791

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

4869

Males

4501

M18-39

4501

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

4098

Males

3839

M18-39

3839

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

4046

Males

3776

M18-39

3776

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

3630

Males

3383

M18-39

3383

20M→21M

20.0 - 21.0 mi

Top 8%
×8story building
+106ft-24ft

Overall

2038

Males

1924

M18-39

1924

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2077

Males

1970

M18-39

1970

35K→23M

21.8 - 23.0 mi

Top 5%
×5story building
+23ft-63ft

Overall

1219

Males

1150

M18-39

1150

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1325

Males

1253

M18-39

1253

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1417

Males

1336

M18-39

1336

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1700

Males

1593

M18-39

1593

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2story building
+22ft-21ft

Overall

1463

Males

1382

M18-39

1382

Passing Analysis

Category:
Athletes Passed
1233
Passed By
1158
Net Change
+75
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2762
5K → 10K86296-210#2762#2972
10K → 15K24271-247#2972#3219
15K → 20K44207-163#3219#3382
20K → Half257-55#3382#3437
Half → 25K57122-65#3437#3502
25K → 30K76156-80#3502#3582
30K → 20M7737+40#3582#3542
20M → 21M1692+167#3542#3375
21M → 35K782+76#3375#3299
35K → 23M2240+224#3299#3075
23M → 24M1293+126#3075#2949
24M → 40K1161+115#2949#2834
40K → 25.2M460+46#2834#2788
25.2M → Finish1054+101#2788#2687
TOTALS12331158+75
📊

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