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BOSTON MARATHON 2023

Jefferson Driscoll

Bib: 31859•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
10:44/mi
33:20
↑ 97↓ 3451.5%
10K· 6.21 mi
10:55/mi
1:07:16
↑ 79↓ 1380.4%
15K· 9.32 mi
10:50/mi
1:40:54
↑ 67↓ 78
20K· 12.43 mi
10:44/mi
2:14:15
↑ 106↓ 860.1%
Half· 13.11 mi
10:08/mi
2:21:10
↑ 19↓ 370.5%
25K· 15.53 mi
10:22/mi
2:46:19
↑ 66↓ 880.2%
30K· 18.64 mi
10:37/mi
3:19:17
↑ 181↓ 1480.2%
20M
10:17/mi
3:33:15
↑ 64↓ 500.2%
21M
9:51/mi
3:43:06
↑ 106↓ 241.6%
35K· 21.75 mi
10:10/mi
3:50:42
↑ 17↓ 861.7%
23M
9:42/mi
4:02:51
↑ 23↓ 630.6%
24M
9:56/mi
4:12:47
↓ 821.3%
40K· 24.85 mi
10:01/mi
4:21:21
↓ 200.3%
25.2M
10:12/mi
4:24:52
↑ 13↓ 160.2%
Finish· 26.22 mi
10:27/mi
4:35:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:21:10
Pace10:46 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:14:21
Pace10:15 /mi
📊Negative Split: 4.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5033:2010:4433:20
10:44
-
10K
6.21 mi12:27:461:07:1610:5033:56
10:55
+0:11
15K
9.32 mi13:01:241:40:5410:5033:38
10:50
-0:05
20K
12.43 mi13:34:452:14:1510:4833:21
10:44
-0:06
Half
13.11 mi13:41:402:21:1010:466:55
10:08
-0:36
25K
15.53 mi14:06:492:46:1910:4225:09
10:22
+0:14
30K
18.64 mi14:39:473:19:1710:4132:58
10:37
+0:15
20M
20.00 mi14:53:453:33:1510:4013:58
10:17
-0:20
21M
21.00 mi15:03:363:43:0610:379:51
9:51
-0:26
35K
21.75 mi15:11:123:50:4210:367:36
10:10
+0:19
23M
23.00 mi15:23:214:02:5110:3412:09
9:42
-0:28
24M
24.00 mi15:33:174:12:4710:329:56
9:56
+0:14
40K
24.85 mi15:41:514:21:2110:318:34
10:01
+0:05
25.2M
25.20 mi15:45:224:24:5210:313:31
10:12
+0:11
Finish
26.22 mi15:56:014:35:3110:3110:39
10:27
+0:15

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

9:42 /mi

Average Pace

10:31 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:16

51% of race

Time at Steady Pace

2:14:15

49% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:30 /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 mi11:53:5033:2010:4433:20
10:44
#25245
10K
6.21 mi12:27:461:07:1610:5033:56
10:55
#25317
15K
9.32 mi13:01:241:40:5410:5033:38
10:50
#25174
20K
12.43 mi13:34:452:14:1510:4833:21
10:44
#24925
Half
13.11 mi13:41:402:21:1010:466:55
10:08
#24873
25K
15.53 mi14:06:492:46:1910:4225:09
10:22
#24566
30K
18.64 mi14:39:473:19:1710:4132:58
10:37
#24149
20M
20.00 mi14:53:453:33:1510:4013:58
10:17
#23964
21M
21.00 mi15:03:363:43:0610:379:51
9:51
#23698
35K
21.75 mi15:11:123:50:4210:367:36
10:10
#23644
23M
23.00 mi15:23:214:02:5110:3412:09
9:42
#23463
24M
24.00 mi15:33:174:12:4710:329:56
9:56
#23357
40K
24.85 mi15:41:514:21:2110:318:34
10:01
#23253
25.2M
25.20 mi15:45:224:24:5210:313:31
10:12
#23178
Finish
26.22 mi15:56:014:35:3110:3110:39
10:27
#23165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25245146481464824963(Top 94%)14502(Top 96%)14502(Top 274%)
10K6.21 mi3.10 mi25317-7214684-3614684-3625370(Top 95%)14697(Top 97%)14697(Top 278%)
15K9.32 mi3.11 mi25174+14314615+6914615+6924963(Top 94%)14502(Top 96%)14502(Top 274%)
20K12.43 mi3.11 mi24925+24914490+12514490+12524224(Top 91%)14155(Top 93%)14155(Top 268%)
Half13.11 mi0.68 mi24873+5214464+2614464+2623538(Top 88%)13867(Top 91%)13867(Top 262%)
25K15.53 mi2.42 mi24566+30714319+14514319+14522959(Top 86%)13573(Top 89%)13573(Top 257%)
30K18.64 mi3.11 mi24149+41714122+19714122+19722435(Top 84%)13268(Top 87%)13268(Top 251%)
20M20.00 mi1.36 mi23964+18514040+8214040+8221209(Top 80%)12667(Top 83%)12667(Top 240%)
21M21.00 mi1.00 mi23698+26613904+13613904+13617443(Top 66%)10978(Top 72%)10978(Top 208%)
35K21.75 mi0.75 mi23644+5413877+2713877+2721678(Top 81%)12791(Top 84%)12791(Top 242%)
23M23.00 mi1.25 mi23463+18113778+9913778+9919088(Top 72%)11617(Top 77%)11617(Top 220%)
24M24.00 mi1.00 mi23357+10613716+6213716+6220598(Top 77%)12255(Top 81%)12255(Top 232%)
40K24.85 mi0.85 mi23253+10413664+5213664+5220022(Top 75%)11936(Top 79%)11936(Top 226%)
25.2M25.20 mi0.35 mi23178+7513621+4313621+4318115(Top 68%)11098(Top 73%)11098(Top 210%)
Finish26.22 mi1.02 mi23165+1313610+1113610+1122903(Top 86%)13279(Top 88%)13279(Top 251%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

24963

Males

14502

M18-39

14502

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

25370

Males

14697

M18-39

14697

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

24963

Males

14502

M18-39

14502

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24224

Males

14155

M18-39

14155

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23538

Males

13867

M18-39

13867

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

22959

Males

13573

M18-39

13573

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

22435

Males

13268

M18-39

13268

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21209

Males

12667

M18-39

12667

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17443

Males

10978

M18-39

10978

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21678

Males

12791

M18-39

12791

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19088

Males

11617

M18-39

11617

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20598

Males

12255

M18-39

12255

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20022

Males

11936

M18-39

11936

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18115

Males

11098

M18-39

11098

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

22903

Males

13279

M18-39

13279

Passing Analysis

Category:
Athletes Passed
2389
Passed By
309
Net Change
+2080
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25245
5K → 10K131203-72#25245#25317
10K → 15K18946+143#25317#25174
15K → 20K26718+249#25174#24925
20K → Half520+52#24925#24873
Half → 25K3070+307#24873#24566
25K → 30K4214+417#24566#24149
30K → 20M1861+185#24149#23964
20M → 21M2660+266#23964#23698
21M → 35K584+54#23698#23644
35K → 23M1810+181#23644#23463
23M → 24M1115+106#23463#23357
24M → 40K1062+104#23357#23253
40K → 25.2M750+75#23253#23178
25.2M → Finish3926+13#23178#23165
TOTALS2389309+2080
📊

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