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BOSTON MARATHON 2023

Keith Parks

Bib: 15613•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
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
8:39/mi
26:51
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
54:07
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:22:00
↑ 67↓ 78
20K· 12.43 mi
9:34/mi
1:51:43
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:57:00
↑ 19↓ 370.5%
25K· 15.53 mi
8:25/mi
2:17:25
↑ 66↓ 880.2%
30K· 18.64 mi
9:07/mi
2:45:43
↑ 181↓ 1480.2%
20M
8:58/mi
2:57:54
↑ 64↓ 500.2%
21M
9:22/mi
3:07:16
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
3:13:41
↑ 17↓ 861.7%
23M
8:53/mi
3:24:48
↑ 23↓ 630.6%
24M
8:35/mi
3:33:23
↓ 821.3%
40K· 24.85 mi
8:45/mi
3:40:52
↓ 200.3%
25.2M
9:08/mi
3:44:01
↑ 13↓ 160.2%
Finish· 26.22 mi
8:07/mi
3:52:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:57:00
Pace8:55 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:55:17
Pace8:48 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3026:518:3926:51
8:39
-
10K
6.21 mi11:48:4654:078:4327:16
8:47
+0:08
15K
9.32 mi12:16:391:22:008:4827:53
8:58
+0:11
20K
12.43 mi12:46:221:51:438:5929:43
9:34
+0:36
Half
13.11 mi12:51:391:57:008:555:17
7:45
-1:49
25K
15.53 mi13:12:042:17:258:5120:25
8:25
+0:40
30K
18.64 mi13:40:222:45:438:5328:18
9:07
+0:42
20M
20.00 mi13:52:332:57:548:5412:11
8:58
-0:09
21M
21.00 mi14:01:553:07:168:559:22
9:22
+0:24
35K
21.75 mi14:08:203:13:418:546:25
8:35
-0:47
23M
23.00 mi14:19:273:24:488:5411:07
8:53
+0:18
24M
24.00 mi14:28:023:33:238:538:35
8:35
-0:18
40K
24.85 mi14:35:313:40:528:537:29
8:45
+0:10
25.2M
25.20 mi14:38:403:44:018:533:09
9:08
+0:23
Finish
26.22 mi14:46:563:52:178:528:16
8:07
-1:01

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

7:45 /mi

Average Pace

8:52 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:58

15% of race

Time at Steady Pace

2:07:47

55% of race

Time at Slower Pace

1:10:32

30% of race

Average Pace: 8:52 /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 mi11:21:3026:518:3926:51
8:39
#18491
10K
6.21 mi11:48:4654:078:4327:16
8:47
#19146
15K
9.32 mi12:16:391:22:008:4827:53
8:58
#19595
20K
12.43 mi12:46:221:51:438:5929:43
9:34
#20310
Half
13.11 mi12:51:391:57:008:555:17
7:45
#19995
25K
15.53 mi13:12:042:17:258:5120:25
8:25
#19337
30K
18.64 mi13:40:222:45:438:5328:18
9:07
#19050
20M
20.00 mi13:52:332:57:548:5412:11
8:58
#18849
21M
21.00 mi14:01:553:07:168:559:22
9:22
#18628
35K
21.75 mi14:08:203:13:418:546:25
8:35
#18521
23M
23.00 mi14:19:273:24:488:5411:07
8:53
#18324
24M
24.00 mi14:28:023:33:238:538:35
8:35
#18195
40K
24.85 mi14:35:313:40:528:537:29
8:45
#18082
25.2M
25.20 mi14:38:403:44:018:533:09
9:08
#18010
Finish
26.22 mi14:46:563:52:178:528:16
8:07
#17825
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18491116041160420375(Top 77%)12464(Top 82%)12464(Top 1123%)
10K6.21 mi3.10 mi19146-65511879-27511879-27519799(Top 74%)12196(Top 80%)12196(Top 1099%)
15K9.32 mi3.11 mi19595-44912065-18612065-18620375(Top 77%)12464(Top 82%)12464(Top 1123%)
20K12.43 mi3.11 mi20310-71512395-33012395-33021739(Top 82%)13068(Top 86%)13068(Top 1177%)
Half13.11 mi0.68 mi19995+31512253+14212253+14212235(Top 46%)9189(Top 61%)9189(Top 828%)
25K15.53 mi2.42 mi19337+65811992+26111992+26115716(Top 59%)10430(Top 69%)10430(Top 940%)
30K18.64 mi3.11 mi19050+28711864+12811864+12817727(Top 67%)11228(Top 74%)11228(Top 1012%)
20M20.00 mi1.36 mi18849+20111759+10511759+10516343(Top 61%)10549(Top 70%)10549(Top 950%)
21M21.00 mi1.00 mi18628+22111662+9711662+9715327(Top 58%)10070(Top 66%)10070(Top 907%)
35K21.75 mi0.75 mi18521+10711603+5911603+5915723(Top 59%)10178(Top 67%)10178(Top 917%)
23M23.00 mi1.25 mi18324+19711498+10511498+10515423(Top 58%)10002(Top 66%)10002(Top 901%)
24M24.00 mi1.00 mi18195+12911435+6311435+6314959(Top 56%)9737(Top 64%)9737(Top 877%)
40K24.85 mi0.85 mi18082+11311377+5811377+5814813(Top 56%)9612(Top 63%)9612(Top 866%)
25.2M25.20 mi0.35 mi18010+7211341+3611341+3613267(Top 50%)8908(Top 59%)8908(Top 803%)
Finish26.22 mi1.02 mi17825+18511260+8111260+8112855(Top 48%)8709(Top 57%)8709(Top 785%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20375

Males

12464

M60-64

12464

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19799

Males

12196

M60-64

12196

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20375

Males

12464

M60-64

12464

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

21739

Males

13068

M60-64

13068

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12235

Males

9189

M60-64

9189

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15716

Males

10430

M60-64

10430

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17727

Males

11228

M60-64

11228

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16343

Males

10549

M60-64

10549

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15327

Males

10070

M60-64

10070

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

15723

Males

10178

M60-64

10178

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

15423

Males

10002

M60-64

10002

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14959

Males

9737

M60-64

9737

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14813

Males

9612

M60-64

9612

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13267

Males

8908

M60-64

8908

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12855

Males

8709

M60-64

8709

Passing Analysis

Category:
Athletes Passed
2793
Passed By
2127
Net Change
+666
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18491
5K → 10K118773-655#18491#19146
10K → 15K58507-449#19146#19595
15K → 20K39754-715#19595#20310
20K → Half3150+315#20310#19995
Half → 25K6580+658#19995#19337
25K → 30K33851+287#19337#19050
30K → 20M2076+201#19050#18849
20M → 21M2243+221#18849#18628
21M → 35K1136+107#18628#18521
35K → 23M2069+197#18521#18324
23M → 24M1345+129#18324#18195
24M → 40K1185+113#18195#18082
40K → 25.2M742+72#18082#18010
25.2M → Finish1916+185#18010#17825
TOTALS27932127+666
📊

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