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BOSTON MARATHON 2023

Jeremy Neff

Bib: 6394•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 11%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M45-49)
#0 / 2252
Top 3%
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
6:29/mi
20:10
↑ 97↓ 3451.5%
10K· 6.21 mi
6:23/mi
39:59
↑ 79↓ 1380.4%
15K· 9.32 mi
6:26/mi
59:59
↑ 67↓ 78
20K· 12.43 mi
6:25/mi
1:19:54
↑ 106↓ 860.1%
Half· 13.11 mi
6:17/mi
1:24:11
↑ 19↓ 370.5%
25K· 15.53 mi
6:32/mi
1:40:01
↑ 66↓ 880.2%
30K· 18.64 mi
6:33/mi
2:00:23
↑ 181↓ 1480.2%
20M
6:31/mi
2:09:14
↑ 64↓ 500.2%
21M
6:38/mi
2:15:52
↑ 106↓ 241.6%
35K· 21.75 mi
6:18/mi
2:20:35
↑ 17↓ 861.7%
23M
6:36/mi
2:28:51
↑ 23↓ 630.6%
24M
6:21/mi
2:35:12
↓ 821.3%
40K· 24.85 mi
6:31/mi
2:40:46
↓ 200.3%
25.2M
6:43/mi
2:43:05
↑ 13↓ 160.2%
Finish· 26.22 mi
6:17/mi
2:49:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:11
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:25:18
Pace6:30 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0020:106:2920:10
6:29
-
10K
6.21 mi10:43:4939:596:2619:49
6:23
-0:06
15K
9.32 mi11:03:4959:596:2620:00
6:26
+0:03
20K
12.43 mi11:23:441:19:546:2619:55
6:25
-0:01
Half
13.11 mi11:28:011:24:116:254:17
6:17
-0:08
25K
15.53 mi11:43:511:40:016:2615:50
6:32
+0:15
30K
18.64 mi12:04:132:00:236:2720:22
6:33
+0:01
20M
20.00 mi12:13:042:09:146:288:51
6:31
-0:02
21M
21.00 mi12:19:422:15:526:286:38
6:38
+0:07
35K
21.75 mi12:24:252:20:356:284:43
6:18
-0:20
23M
23.00 mi12:32:412:28:516:288:16
6:36
+0:18
24M
24.00 mi12:39:022:35:126:286:21
6:21
-0:15
40K
24.85 mi12:44:362:40:466:285:34
6:31
+0:10
25.2M
25.20 mi12:46:552:43:056:282:19
6:43
+0:12
Finish
26.22 mi12:53:192:49:296:286:24
6:17
-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

6:17 /mi

Average Pace

6:28 /mi

Slowest Pace

6:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:16

90% of race

Time at Steady Pace

17:13

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:24:0020:106:2920:10
6:29
#2224
10K
6.21 mi10:43:4939:596:2619:49
6:23
#2157
15K
9.32 mi11:03:4959:596:2620:00
6:26
#2174
20K
12.43 mi11:23:441:19:546:2619:55
6:25
#2076
Half
13.11 mi11:28:011:24:116:254:17
6:17
#2050
25K
15.53 mi11:43:511:40:016:2615:50
6:32
#2083
30K
18.64 mi12:04:132:00:236:2720:22
6:33
#2008
20M
20.00 mi12:13:042:09:146:288:51
6:31
#1940
21M
21.00 mi12:19:422:15:526:286:38
6:38
#1861
35K
21.75 mi12:24:252:20:356:284:43
6:18
#1839
23M
23.00 mi12:32:412:28:516:288:16
6:36
#1810
24M
24.00 mi12:39:022:35:126:286:21
6:21
#1773
40K
24.85 mi12:44:362:40:466:285:34
6:31
#1741
25.2M
25.20 mi12:46:552:43:056:282:19
6:43
#1720
Finish
26.22 mi12:53:192:49:296:286:24
6:17
#1693
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2224212221222288(Top 9%)2196(Top 14%)2196(Top 98%)
10K6.21 mi3.10 mi2157+672066+562066+562120(Top 8%)2031(Top 13%)2031(Top 90%)
15K9.32 mi3.11 mi2174-172085-192085-192288(Top 9%)2196(Top 14%)2196(Top 98%)
20K12.43 mi3.11 mi2076+981988+971988+971839(Top 7%)1762(Top 12%)1762(Top 78%)
Half13.11 mi0.68 mi2050+261963+251963+251699(Top 6%)1629(Top 11%)1629(Top 72%)
25K15.53 mi2.42 mi2083-331998-351998-352314(Top 9%)2216(Top 15%)2216(Top 98%)
30K18.64 mi3.11 mi2008+751925+731925+731779(Top 7%)1702(Top 11%)1702(Top 76%)
20M20.00 mi1.36 mi1940+681858+671858+671484(Top 6%)1413(Top 9%)1413(Top 63%)
21M21.00 mi1.00 mi1861+791781+771781+77948(Top 4%)900(Top 6%)900(Top 40%)
35K21.75 mi0.75 mi1839+221758+231758+231594(Top 6%)1514(Top 10%)1514(Top 67%)
23M23.00 mi1.25 mi1810+291731+271731+271772(Top 7%)1681(Top 11%)1681(Top 75%)
24M24.00 mi1.00 mi1773+371696+351696+351507(Top 6%)1426(Top 9%)1426(Top 63%)
40K24.85 mi0.85 mi1741+321665+311665+311555(Top 6%)1465(Top 10%)1465(Top 65%)
25.2M25.20 mi0.35 mi1720+211644+211644+21959(Top 4%)915(Top 6%)915(Top 41%)
Finish26.22 mi1.02 mi1693+271617+271617+271539(Top 6%)1454(Top 10%)1454(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2288

Males

2196

M45-49

2196

5K→10K

3.1 - 6.2 mi

Top 8%
×5story building
+79ft-138ft

Overall

2120

Males

2031

M45-49

2031

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2288

Males

2196

M45-49

2196

15K→20K

9.3 - 12.4 mi

Top 7%
×5story building
+106ft-86ft

Overall

1839

Males

1762

M45-49

1762

20K→Half

12.4 - 13.1 mi

Top 6%
×2story building
+19ft-37ft

Overall

1699

Males

1629

M45-49

1629

Half→25K

13.1 - 15.5 mi

Top 9%
×4story building
+66ft-88ft

Overall

2314

Males

2216

M45-49

2216

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

1779

Males

1702

M45-49

1702

30K→20M

18.6 - 20.0 mi

Top 6%
×5story building
+64ft-50ft

Overall

1484

Males

1413

M45-49

1413

20M→21M

20.0 - 21.0 mi

Top 4%
×8story building
+106ft-24ft

Overall

948

Males

900

M45-49

900

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1594

Males

1514

M45-49

1514

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

1772

Males

1681

M45-49

1681

23M→24M

23.0 - 24.0 mi

Top 6%
×6story building
+12ft-82ft

Overall

1507

Males

1426

M45-49

1426

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1555

Males

1465

M45-49

1465

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

959

Males

915

M45-49

915

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2story building
+22ft-21ft

Overall

1539

Males

1454

M45-49

1454

Passing Analysis

Category:
Athletes Passed
886
Passed By
355
Net Change
+531
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2224
5K → 10K15588+67#2224#2157
10K → 15K5370-17#2157#2174
15K → 20K11618+98#2174#2076
20K → Half271+26#2076#2050
Half → 25K3467-33#2050#2083
25K → 30K10429+75#2083#2008
30K → 20M757+68#2008#1940
20M → 21M801+79#1940#1861
21M → 35K3210+22#1861#1839
35K → 23M5324+29#1839#1810
23M → 24M436+37#1810#1773
24M → 40K419+32#1773#1741
40K → 25.2M254+21#1741#1720
25.2M → Finish4821+27#1720#1693
TOTALS886355+531
📊

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