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BOSTON MARATHON 2023

Jeffrey Larnard

Bib: 19991•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 36%
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
7:15/mi
22:31
↑ 97↓ 3451.5%
10K· 6.21 mi
6:58/mi
44:11
↑ 79↓ 1380.4%
15K· 9.32 mi
6:58/mi
1:05:49
↑ 67↓ 78
20K· 12.43 mi
7:00/mi
1:27:34
↑ 106↓ 860.1%
Half· 13.11 mi
6:53/mi
1:32:16
↑ 19↓ 370.5%
25K· 15.53 mi
7:02/mi
1:49:19
↑ 66↓ 880.2%
30K· 18.64 mi
7:20/mi
2:12:07
↑ 181↓ 1480.2%
20M
7:23/mi
2:22:09
↑ 64↓ 500.2%
21M
7:56/mi
2:30:05
↑ 106↓ 241.6%
35K· 21.75 mi
6:48/mi
2:35:10
↑ 17↓ 861.7%
23M
7:10/mi
2:44:08
↑ 23↓ 630.6%
24M
7:03/mi
2:51:11
↓ 821.3%
40K· 24.85 mi
7:14/mi
2:57:22
↓ 200.3%
25.2M
8:48/mi
3:00:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:08:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:16
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:36:40
Pace7:22 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:5922:317:1522:31
7:15
-
10K
6.21 mi11:35:3944:117:0721:40
6:58
-0:17
15K
9.32 mi11:57:171:05:497:0421:38
6:58
0:00
20K
12.43 mi12:19:021:27:347:0321:45
7:00
+0:02
Half
13.11 mi12:23:441:32:167:024:42
6:53
-0:07
25K
15.53 mi12:40:471:49:197:0217:03
7:02
+0:09
30K
18.64 mi13:03:352:12:077:0522:48
7:20
+0:18
20M
20.00 mi13:13:372:22:097:0610:02
7:23
+0:03
21M
21.00 mi13:21:332:30:057:097:56
7:56
+0:33
35K
21.75 mi13:26:382:35:107:085:05
6:48
-1:08
23M
23.00 mi13:35:362:44:087:088:58
7:10
+0:22
24M
24.00 mi13:42:392:51:117:087:03
7:03
-0:07
40K
24.85 mi13:48:502:57:227:086:11
7:14
+0:11
25.2M
25.20 mi13:51:523:00:247:103:02
8:48
+1:34
Finish
26.22 mi14:00:243:08:567:138:32
8:22
-0:26

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

6:48 /mi

Average Pace

7:13 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

9:47

5% of race

Time at Steady Pace

2:39:39

85% of race

Time at Slower Pace

19:30

10% of race

Average Pace: 7:12 /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 mi11:13:5922:317:1522:31
7:15
#7776
10K
6.21 mi11:35:3944:117:0721:40
6:58
#7171
15K
9.32 mi11:57:171:05:497:0421:38
6:58
#6846
20K
12.43 mi12:19:021:27:347:0321:45
7:00
#6615
Half
13.11 mi12:23:441:32:167:024:42
6:53
#6576
25K
15.53 mi12:40:471:49:197:0217:03
7:02
#6429
30K
18.64 mi13:03:352:12:077:0522:48
7:20
#6334
20M
20.00 mi13:13:372:22:097:0610:02
7:23
#6273
21M
21.00 mi13:21:332:30:057:097:56
7:56
#6268
35K
21.75 mi13:26:382:35:107:085:05
6:48
#6173
23M
23.00 mi13:35:362:44:087:088:58
7:10
#6027
24M
24.00 mi13:42:392:51:117:087:03
7:03
#5917
40K
24.85 mi13:48:502:57:227:086:11
7:14
#5852
25.2M
25.20 mi13:51:523:00:247:103:02
8:48
#5909
Finish
26.22 mi14:00:243:08:567:138:32
8:22
#6171
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7776682668266331(Top 24%)5719(Top 38%)5719(Top 108%)
10K6.21 mi3.10 mi7171+6056383+4436383+4436639(Top 25%)5961(Top 39%)5961(Top 113%)
15K9.32 mi3.11 mi6846+3256136+2476136+2476331(Top 24%)5719(Top 38%)5719(Top 108%)
20K12.43 mi3.11 mi6615+2315944+1925944+1925981(Top 22%)5461(Top 36%)5461(Top 103%)
Half13.11 mi0.68 mi6576+395916+285916+285927(Top 22%)5436(Top 36%)5436(Top 103%)
25K15.53 mi2.42 mi6429+1475800+1165800+1165764(Top 22%)5277(Top 35%)5277(Top 100%)
30K18.64 mi3.11 mi6334+955716+845716+846244(Top 23%)5546(Top 37%)5546(Top 105%)
20M20.00 mi1.36 mi6273+615659+575659+576085(Top 23%)5358(Top 35%)5358(Top 101%)
21M21.00 mi1.00 mi6268+55643+165643+166902(Top 26%)5798(Top 38%)5798(Top 110%)
35K21.75 mi0.75 mi6173+955566+775566+774204(Top 16%)3854(Top 25%)3854(Top 73%)
23M23.00 mi1.25 mi6027+1465437+1295437+1294616(Top 17%)4175(Top 28%)4175(Top 79%)
24M24.00 mi1.00 mi5917+1105345+925345+924919(Top 18%)4371(Top 29%)4371(Top 83%)
40K24.85 mi0.85 mi5852+655284+615284+615060(Top 19%)4390(Top 29%)4390(Top 83%)
25.2M25.20 mi0.35 mi5909-575324-405324-4011197(Top 42%)7860(Top 52%)7860(Top 149%)
Finish26.22 mi1.02 mi6171-2625506-1825506-18214512(Top 55%)9481(Top 62%)9481(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6331

Males

5719

M18-39

5719

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6639

Males

5961

M18-39

5961

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6331

Males

5719

M18-39

5719

15K→20K

9.3 - 12.4 mi

Top 22%
×5story building
+106ft-86ft

Overall

5981

Males

5461

M18-39

5461

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

5927

Males

5436

M18-39

5436

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

5764

Males

5277

M18-39

5277

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6244

Males

5546

M18-39

5546

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6085

Males

5358

M18-39

5358

20M→21M

20.0 - 21.0 mi

Top 26%
×8story building
+106ft-24ft

Overall

6902

Males

5798

M18-39

5798

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4204

Males

3854

M18-39

3854

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4616

Males

4175

M18-39

4175

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

4919

Males

4371

M18-39

4371

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5060

Males

4390

M18-39

4390

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11197

Males

7860

M18-39

7860

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14512

Males

9481

M18-39

9481

Passing Analysis

Category:
Athletes Passed
2222
Passed By
617
Net Change
+1605
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7776
5K → 10K64439+605#7776#7171
10K → 15K35025+325#7171#6846
15K → 20K25423+231#6846#6615
20K → Half467+39#6615#6576
Half → 25K15912+147#6576#6429
25K → 30K16065+95#6429#6334
30K → 20M8827+61#6334#6273
20M → 21M6358+5#6273#6268
21M → 35K983+95#6268#6173
35K → 23M1493+146#6173#6027
23M → 24M1188+110#6027#5917
24M → 40K7914+65#5917#5852
40K → 25.2M764-57#5852#5909
25.2M → Finish7269-262#5909#6171
TOTALS2222617+1605
📊

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