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BOSTON MARATHON 2023

Michael Neff

Bib: 18524•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 39%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 43%
Division (M55-59)
#0 / 1422
Top 26%
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
7:39/mi
23:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
46:56
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:10:20
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:35:01
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:40:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:58:32
↑ 66↓ 880.2%
30K· 18.64 mi
7:46/mi
2:22:41
↑ 181↓ 1480.2%
20M
7:47/mi
2:33:15
↑ 64↓ 500.2%
21M
8:07/mi
2:41:22
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:46:54
↑ 17↓ 861.7%
23M
7:54/mi
2:56:48
↑ 23↓ 630.6%
24M
8:56/mi
3:05:44
↓ 821.3%
40K· 24.85 mi
8:49/mi
3:13:16
↓ 200.3%
25.2M
8:42/mi
3:16:16
↑ 13↓ 160.2%
Finish· 26.22 mi
7:55/mi
3:24:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:07
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:44:13
Pace7:57 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3723:467:3923:46
7:39
-
10K
6.21 mi11:38:4746:567:3323:10
7:27
-0:12
15K
9.32 mi12:02:111:10:207:3323:24
7:32
+0:05
20K
12.43 mi12:26:521:35:017:3924:41
7:57
+0:25
Half
13.11 mi12:31:581:40:077:385:06
7:29
-0:28
25K
15.53 mi12:50:231:58:327:3818:25
7:36
+0:07
30K
18.64 mi13:14:322:22:417:3924:09
7:46
+0:10
20M
20.00 mi13:25:062:33:157:4010:34
7:47
+0:01
21M
21.00 mi13:33:132:41:227:418:07
8:07
+0:20
35K
21.75 mi13:38:452:46:547:405:32
7:24
-0:43
23M
23.00 mi13:48:392:56:487:419:54
7:54
+0:30
24M
24.00 mi13:57:353:05:447:448:56
8:56
+1:02
40K
24.85 mi14:05:073:13:167:477:32
8:49
-0:07
25.2M
25.20 mi14:08:073:16:167:473:00
8:42
-0:07
Finish
26.22 mi14:16:113:24:207:488:04
7:55
-0:47

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

7:24 /mi

Average Pace

7:48 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:12

28% of race

Time at Steady Pace

1:59:33

59% of race

Time at Slower Pace

27:35

13% of race

Average Pace: 7:48 /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 mi11:15:3723:467:3923:46
7:39
#11007
10K
6.21 mi11:38:4746:567:3323:10
7:27
#10492
15K
9.32 mi12:02:111:10:207:3323:24
7:32
#10462
20K
12.43 mi12:26:521:35:017:3924:41
7:57
#11068
Half
13.11 mi12:31:581:40:077:385:06
7:29
#11011
25K
15.53 mi12:50:231:58:327:3818:25
7:36
#10733
30K
18.64 mi13:14:322:22:417:3924:09
7:46
#10390
20M
20.00 mi13:25:062:33:157:4010:34
7:47
#10257
21M
21.00 mi13:33:132:41:227:418:07
8:07
#10089
35K
21.75 mi13:38:452:46:547:405:32
7:24
#9973
23M
23.00 mi13:48:392:56:487:419:54
7:54
#9900
24M
24.00 mi13:57:353:05:447:448:56
8:56
#10251
40K
24.85 mi14:05:073:13:167:477:32
8:49
#10443
25.2M
25.20 mi14:08:073:16:167:473:00
8:42
#10437
Finish
26.22 mi14:16:113:24:207:488:04
7:55
#10458
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi110078662866210426(Top 39%)8373(Top 55%)8373(Top 589%)
10K6.21 mi3.10 mi10492+5158411+2518411+25110116(Top 38%)8232(Top 54%)8232(Top 579%)
15K9.32 mi3.11 mi10462+308404+78404+710426(Top 39%)8373(Top 55%)8373(Top 589%)
20K12.43 mi3.11 mi11068-6068688-2848688-28412970(Top 49%)9416(Top 62%)9416(Top 662%)
Half13.11 mi0.68 mi11011+578660+288660+289999(Top 38%)8109(Top 53%)8109(Top 570%)
25K15.53 mi2.42 mi10733+2788503+1578503+1579506(Top 36%)7717(Top 51%)7717(Top 543%)
30K18.64 mi3.11 mi10390+3438279+2248279+2249156(Top 34%)7368(Top 49%)7368(Top 518%)
20M20.00 mi1.36 mi10257+1338196+838196+838684(Top 33%)7017(Top 46%)7017(Top 493%)
21M21.00 mi1.00 mi10089+1688090+1068090+1068119(Top 30%)6555(Top 43%)6555(Top 461%)
35K21.75 mi0.75 mi9973+1168005+858005+857779(Top 29%)6375(Top 42%)6375(Top 448%)
23M23.00 mi1.25 mi9900+737936+697936+699121(Top 34%)7020(Top 46%)7020(Top 494%)
24M24.00 mi1.00 mi10251-3518089-1538089-15316893(Top 63%)10570(Top 70%)10570(Top 743%)
40K24.85 mi0.85 mi10443-1928148-598148-5915105(Top 57%)9726(Top 64%)9726(Top 684%)
25.2M25.20 mi0.35 mi10437+68130+188130+1810699(Top 40%)7656(Top 50%)7656(Top 538%)
Finish26.22 mi1.02 mi10458-218117+138117+1311482(Top 43%)8030(Top 53%)8030(Top 565%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10426

Males

8373

M55-59

8373

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10116

Males

8232

M55-59

8232

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10426

Males

8373

M55-59

8373

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12970

Males

9416

M55-59

9416

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

9999

Males

8109

M55-59

8109

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9506

Males

7717

M55-59

7717

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9156

Males

7368

M55-59

7368

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

8684

Males

7017

M55-59

7017

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8119

Males

6555

M55-59

6555

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7779

Males

6375

M55-59

6375

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9121

Males

7020

M55-59

7020

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16893

Males

10570

M55-59

10570

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15105

Males

9726

M55-59

9726

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10699

Males

7656

M55-59

7656

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

11482

Males

8030

M55-59

8030

Passing Analysis

Category:
Athletes Passed
2311*
Passed By
1760
Net Change
+549
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11007
5K → 10K612*97+515#11007#10492
10K → 15K219189+30#10492#10462
15K → 20K34640-606#10462#11068
20K → Half647+57#11068#11011
Half → 25K28911+278#11011#10733
25K → 30K37734+343#10733#10390
30K → 20M151*18+133#10390#10257
20M → 21M1768+168#10257#10089
21M → 35K126*10+116#10089#9973
35K → 23M11037+73#9973#9900
23M → 24M17366-351#9900#10251
24M → 40K28220-192#10251#10443
40K → 25.2M3933+6#10443#10437
25.2M → Finish6990-21#10437#10458
TOTALS2311*1760+549

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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