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BOSTON MARATHON 2023

Keith Reinert

CO

Bib: 5655 M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 9%
Division (M18-39)
#0 / 5285
Top 21%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:20/mi
19:42
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:22/mi
39:29
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:16/mi
58:58
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:25/mi
1:18:53
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:09/mi
1:23:05
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:16/mi
1:38:17
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:26/mi
1:58:17
↑ 181↓ 1480.2%
138 ft elev
20M
6:35/mi
2:07:14
↑ 64↓ 500.2%
148 ft elev
21M
6:35/mi
2:13:49
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:17/mi
2:18:31
↑ 17↓ 861.7%
156 ft elev
23M
6:34/mi
2:26:44
↑ 23↓ 630.6%
116 ft elev
24M
6:26/mi
2:33:10
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:36/mi
2:38:49
↓ 200.3%
20 ft elev
25.2M
6:19/mi
2:41:00
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:19/mi
2:47:26
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:23:056:20 /mi⚡ faster
2nd Half
1:24:216:26 /mi+1.5%
Positive split — 1.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
19:426:203.11 mi19:42
6:20
-
10K
39:296:213.10 mi19:47
6:22
+0:02
15K
58:586:203.11 mi19:29
6:16
-0:06
20K
1:18:536:213.11 mi19:55
6:25
+0:09
Half(13.11 mi)
1:23:056:200.68 mi4:12
6:09
-0:16
25K
1:38:176:202.42 mi15:12
6:16
+0:07
30K
1:58:176:213.11 mi20:00
6:26
+0:10
20M
2:07:146:221.36 mi8:57
6:35
+0:09
21M
2:13:496:221.00 mi6:35
6:35
0:00
35K
2:18:316:220.75 mi4:42
6:17
-0:18
23M
2:26:446:231.25 mi8:13
6:34
+0:17
24M
2:33:106:231.00 mi6:26
6:26
-0:08
40K
2:38:496:230.85 mi5:39
6:36
+0:10
25.2M
2:41:006:230.35 mi2:11
6:19
-0:17
Finish(26.22 mi)
2:47:266:231.02 mi6:26
6:19
0:00
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

6:09 /mi

Average Pace

6:23 /mi

Slowest Pace

6:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:18:02

82% of race

Time at Steady Pace

29:24

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:23 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi159115161516152314531453
10K3.10 mi1796-2051718-2021718-202205219631963
15K3.11 mi1694+1021619+991619+99152314531453
20K3.11 mi1715-211641-221641-22183017531753
Half(13.11 mi)0.68 mi1691+241619+221619+22120611551155
25K2.42 mi1592+991524+951524+95121911651165
30K3.11 mi1523+691455+691455+69133512771277
20M1.36 mi1524-11456-11456-1177016861686
21M1.00 mi1466+581401+551401+55844799799
35K0.75 mi1462+41396+51396+5149914231423
23M1.25 mi1444+181378+181378+18164315611561
24M1.00 mi1433+111367+111367+11179416901690
40K0.85 mi1435-21369-21369-2193018121812
25.2M0.35 mi1405+301339+301339+30237217217
Finish(26.22 mi)1.02 mi1396+91330+91330+9170716031603

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21story building
+97ft-345ft

Overall

1523

Males

1453

M18-39

1453

5K→10K

3.1 - 6.2 mi

Top 8%
×5story building
+79ft-138ft

Overall

2052

Males

1963

M18-39

1963

10K→15K

6.2 - 9.3 mi

Top 6%
×3story building
+67ft-78ft

Overall

1523

Males

1453

M18-39

1453

15K→20K

9.3 - 12.4 mi

Top 7%
×5story building
+106ft-86ft

Overall

1830

Males

1753

M18-39

1753

20K→Half

12.4 - 13.1 mi

Top 5%
×2story building
+19ft-37ft

Overall

1206

Males

1155

M18-39

1155

Half→25K

13.1 - 15.5 mi

Top 5%
×4story building
+66ft-88ft

Overall

1219

Males

1165

M18-39

1165

25K→30K

15.5 - 18.6 mi

Top 5%
×9story building
+181ft-148ft

Overall

1335

Males

1277

M18-39

1277

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

1770

Males

1686

M18-39

1686

20M→21M

20.0 - 21.0 mi

Top 3%
×8story building
+106ft-24ft

Overall

844

Males

799

M18-39

799

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1499

Males

1423

M18-39

1423

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1643

Males

1561

M18-39

1561

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

1794

Males

1690

M18-39

1690

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1930

Males

1812

M18-39

1812

40K→25.2M

24.9 - 25.2 mi

Top 0.9%
×1story
+13ft-16ft

Overall

237

Males

217

M18-39

217

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2story building
+22ft-21ft

Overall

1707

Males

1603

M18-39

1603

Passing Analysis

Category:
Passed
646
Passed By
451
Net Change
+195
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1591
5K → 10K27232-205#1591#1796
10K → 15K11715+102#1796#1694
15K → 20K4061-21#1694#1715
20K → Half251+24#1715#1691
Half → 25K1056+99#1691#1592
25K → 30K8617+69#1592#1523
30K → 20M2627-1#1523#1524
20M → 21M602+58#1524#1466
21M → 35K1612+4#1466#1462
35K → 23M3719+18#1462#1444
23M → 24M2514+11#1444#1433
24M → 40K1921-2#1433#1435
40K → 25.2M300+30#1435#1405
25.2M → Finish3324+9#1405#1396
TOTALS646451+195

Passing Charts

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