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BOSTON MARATHON 2023

Keith Ennis

Bib: 31118•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
10:00/mi
31:03
↑ 97↓ 3451.5%
10K· 6.21 mi
9:22/mi
1:00:08
↑ 79↓ 1380.4%
15K· 9.32 mi
9:03/mi
1:28:15
↑ 67↓ 78
20K· 12.43 mi
9:10/mi
1:56:44
↑ 106↓ 860.1%
Half· 13.11 mi
9:11/mi
2:03:00
↑ 19↓ 370.5%
25K· 15.53 mi
9:25/mi
2:25:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:56/mi
2:56:42
↑ 181↓ 1480.2%
20M
10:06/mi
3:10:25
↑ 64↓ 500.2%
21M
11:21/mi
3:21:46
↑ 106↓ 241.6%
35K· 21.75 mi
9:56/mi
3:29:12
↑ 17↓ 861.7%
23M
10:01/mi
3:41:45
↑ 23↓ 630.6%
24M
10:00/mi
3:51:45
↓ 821.3%
40K· 24.85 mi
10:21/mi
4:00:36
↓ 200.3%
25.2M
10:41/mi
4:04:17
↑ 13↓ 160.2%
Finish· 26.22 mi
9:15/mi
4:13:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:00
Pace9:23 /mi
2nd Half
Distance13.11 mi
Time2:10:43
Pace9:58 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2231:0310:0031:03
10:00
-
10K
6.21 mi12:20:271:00:089:4129:05
9:22
-0:38
15K
9.32 mi12:48:341:28:159:2828:07
9:03
-0:19
20K
12.43 mi13:17:031:56:449:2428:29
9:10
+0:07
Half
13.11 mi13:23:192:03:009:236:16
9:11
+0:01
25K
15.53 mi13:46:102:25:519:2322:51
9:25
+0:14
30K
18.64 mi14:17:012:56:429:2930:51
9:56
+0:31
20M
20.00 mi14:30:443:10:259:3113:43
10:06
+0:10
21M
21.00 mi14:42:053:21:469:3611:21
11:21
+1:15
35K
21.75 mi14:49:313:29:129:377:26
9:56
-1:25
23M
23.00 mi15:02:043:41:459:3812:33
10:01
+0:05
24M
24.00 mi15:12:043:51:459:3910:00
10:00
-0:01
40K
24.85 mi15:20:554:00:369:418:51
10:21
+0:21
25.2M
25.20 mi15:24:364:04:179:423:41
10:41
+0:20
Finish
26.22 mi15:34:024:13:439:419:26
9:15
-1:26

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

9:03 /mi

Average Pace

9:41 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:14

49% of race

Time at Steady Pace

1:45:36

42% of race

Time at Slower Pace

23:53

9% of race

Average Pace: 9:41 /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 mi11:51:2231:0310:0031:03
10:00
#23417
10K
6.21 mi12:20:271:00:089:4129:05
9:22
#22823
15K
9.32 mi12:48:341:28:159:2828:07
9:03
#22196
20K
12.43 mi13:17:031:56:449:2428:29
9:10
#21784
Half
13.11 mi13:23:192:03:009:236:16
9:11
#21754
25K
15.53 mi13:46:102:25:519:2322:51
9:25
#21563
30K
18.64 mi14:17:012:56:429:2930:51
9:56
#21411
20M
20.00 mi14:30:443:10:259:3113:43
10:06
#21348
21M
21.00 mi14:42:053:21:469:3611:21
11:21
#21367
35K
21.75 mi14:49:313:29:129:377:26
9:56
#21349
23M
23.00 mi15:02:043:41:459:3812:33
10:01
#21255
24M
24.00 mi15:12:043:51:459:3910:00
10:00
#21228
40K
24.85 mi15:20:554:00:369:418:51
10:21
#21214
25.2M
25.20 mi15:24:364:04:179:423:41
10:41
#21186
Finish
26.22 mi15:34:024:13:439:419:26
9:15
#21117
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23417137821378220725(Top 78%)12627(Top 83%)12627(Top 239%)
10K6.21 mi3.10 mi22823+59413538+24413538+24422098(Top 83%)13203(Top 87%)13203(Top 250%)
15K9.32 mi3.11 mi22196+62713239+29913239+29920725(Top 78%)12627(Top 83%)12627(Top 239%)
20K12.43 mi3.11 mi21784+41213060+17913060+17920435(Top 77%)12492(Top 82%)12492(Top 236%)
Half13.11 mi0.68 mi21754+3013048+1213048+1221095(Top 79%)12774(Top 84%)12774(Top 242%)
25K15.53 mi2.42 mi21563+19112962+8612962+8620578(Top 77%)12523(Top 83%)12523(Top 237%)
30K18.64 mi3.11 mi21411+15212881+8112881+8120816(Top 78%)12556(Top 83%)12556(Top 238%)
20M20.00 mi1.36 mi21348+6312834+4712834+4720728(Top 78%)12443(Top 82%)12443(Top 235%)
21M21.00 mi1.00 mi21367-1912836-212836-221587(Top 81%)12789(Top 84%)12789(Top 242%)
35K21.75 mi0.75 mi21349+1812822+1412822+1421095(Top 79%)12533(Top 83%)12533(Top 237%)
23M23.00 mi1.25 mi21255+9412756+6612756+6620055(Top 75%)12048(Top 79%)12048(Top 228%)
24M24.00 mi1.00 mi21228+2712738+1812738+1820776(Top 78%)12335(Top 81%)12335(Top 233%)
40K24.85 mi0.85 mi21214+1412724+1412724+1420861(Top 78%)12312(Top 81%)12312(Top 233%)
25.2M25.20 mi0.35 mi21186+2812709+1512709+1519637(Top 74%)11761(Top 77%)11761(Top 223%)
Finish26.22 mi1.02 mi21117+6912659+5012659+5019178(Top 72%)11624(Top 77%)11624(Top 220%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20725

Males

12627

M18-39

12627

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22098

Males

13203

M18-39

13203

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20725

Males

12627

M18-39

12627

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

20435

Males

12492

M18-39

12492

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

21095

Males

12774

M18-39

12774

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20578

Males

12523

M18-39

12523

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20816

Males

12556

M18-39

12556

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

20728

Males

12443

M18-39

12443

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

21587

Males

12789

M18-39

12789

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

21095

Males

12533

M18-39

12533

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

20055

Males

12048

M18-39

12048

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20776

Males

12335

M18-39

12335

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20861

Males

12312

M18-39

12312

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19637

Males

11761

M18-39

11761

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19178

Males

11624

M18-39

11624

Passing Analysis

Category:
Athletes Passed
2688
Passed By
388
Net Change
+2300
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23417
5K → 10K63743+594#23417#22823
10K → 15K6369+627#22823#22196
15K → 20K42614+412#22196#21784
20K → Half399+30#21784#21754
Half → 25K20918+191#21754#21563
25K → 30K20048+152#21563#21411
30K → 20M10542+63#21411#21348
20M → 21M5170-19#21348#21367
21M → 35K3618+18#21367#21349
35K → 23M12127+94#21349#21255
23M → 24M5730+27#21255#21228
24M → 40K5642+14#21228#21214
40K → 25.2M346+28#21214#21186
25.2M → Finish8112+69#21186#21117
TOTALS2688388+2300
📊

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