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BOSTON MARATHON 2023

Keith Mcdonald

Bib: 25305•M

MA

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
8:13/mi
25:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
49:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:13:15
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:37:33
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:42:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:20/mi
2:03:06
↑ 66↓ 880.2%
30K· 18.64 mi
9:40/mi
2:33:07
↑ 181↓ 1480.2%
20M
10:03/mi
2:46:47
↑ 64↓ 500.2%
21M
11:18/mi
2:58:05
↑ 106↓ 241.6%
35K· 21.75 mi
10:10/mi
3:05:41
↑ 17↓ 861.7%
23M
10:29/mi
3:18:48
↑ 23↓ 630.6%
24M
10:17/mi
3:29:05
↓ 821.3%
40K· 24.85 mi
10:36/mi
3:38:09
↓ 200.3%
25.2M
11:01/mi
3:41:57
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
3:51:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:54
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time2:08:28
Pace9:48 /mi
📊Positive Split: 24.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:3925:338:1325:33
8:13
-
10K
6.21 mi12:05:2349:177:5623:44
7:38
-0:35
15K
9.32 mi12:29:211:13:157:5223:58
7:43
+0:05
20K
12.43 mi12:53:391:37:337:5124:18
7:49
+0:06
Half
13.11 mi12:59:001:42:547:515:21
7:50
+0:01
25K
15.53 mi13:19:122:03:067:5520:12
8:20
+0:30
30K
18.64 mi13:49:132:33:078:1330:01
9:40
+1:20
20M
20.00 mi14:02:532:46:478:2013:40
10:03
+0:23
21M
21.00 mi14:14:112:58:058:2911:18
11:18
+1:15
35K
21.75 mi14:21:473:05:418:327:36
10:10
-1:08
23M
23.00 mi14:34:543:18:488:3913:07
10:29
+0:19
24M
24.00 mi14:45:113:29:058:4310:17
10:17
-0:12
40K
24.85 mi14:54:153:38:098:479:04
10:36
+0:19
25.2M
25.20 mi14:58:033:41:578:483:48
11:01
+0:25
Finish
26.22 mi15:07:283:51:228:509:25
9:14
-1:47

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

7:38 /mi

Average Pace

8:50 /mi

Slowest Pace

11:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:06

53% of race

Time at Steady Pace

1:10:59

31% of race

Time at Slower Pace

37:17

16% of race

Average Pace: 8:49 /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 mi11:41:3925:338:1325:33
8:13
#15616
10K
6.21 mi12:05:2349:177:5623:44
7:38
#13828
15K
9.32 mi12:29:211:13:157:5223:58
7:43
#13213
20K
12.43 mi12:53:391:37:337:5124:18
7:49
#12843
Half
13.11 mi12:59:001:42:547:515:21
7:50
#12849
25K
15.53 mi13:19:122:03:067:5520:12
8:20
#13272
30K
18.64 mi13:49:132:33:078:1330:01
9:40
#14909
20M
20.00 mi14:02:532:46:478:2013:40
10:03
#15490
21M
21.00 mi14:14:112:58:058:2911:18
11:18
#16056
35K
21.75 mi14:21:473:05:418:327:36
10:10
#16368
23M
23.00 mi14:34:543:18:488:3913:07
10:29
#16836
24M
24.00 mi14:45:113:29:058:4310:17
10:17
#17155
40K
24.85 mi14:54:153:38:098:479:04
10:36
#17460
25.2M
25.20 mi14:58:033:41:578:483:48
11:01
#17561
Finish
26.22 mi15:07:283:51:228:509:25
9:14
#17645
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi15616105501055011960(Top 45%)9071(Top 60%)9071(Top 172%)
10K6.21 mi3.10 mi13828+17889873+6779873+67711684(Top 44%)8982(Top 59%)8982(Top 170%)
15K9.32 mi3.11 mi13213+6159612+2619612+26111960(Top 45%)9071(Top 60%)9071(Top 172%)
20K12.43 mi3.11 mi12843+3709437+1759437+17511921(Top 45%)8985(Top 59%)8985(Top 170%)
Half13.11 mi0.68 mi12849-69442-59442-513090(Top 49%)9547(Top 63%)9547(Top 181%)
25K15.53 mi2.42 mi13272-4239592-1509592-15015139(Top 57%)10192(Top 67%)10192(Top 193%)
30K18.64 mi3.11 mi14909-163710205-61310205-61320001(Top 75%)12208(Top 80%)12208(Top 231%)
20M20.00 mi1.36 mi15490-58110387-18210387-18220630(Top 77%)12401(Top 82%)12401(Top 235%)
21M21.00 mi1.00 mi16056-56610588-20110588-20121466(Top 81%)12724(Top 84%)12724(Top 241%)
35K21.75 mi0.75 mi16368-31210708-12010708-12021663(Top 81%)12776(Top 84%)12776(Top 242%)
23M23.00 mi1.25 mi16836-46810895-18710895-18721247(Top 80%)12573(Top 83%)12573(Top 238%)
24M24.00 mi1.00 mi17155-31911005-11011005-11021509(Top 81%)12632(Top 83%)12632(Top 239%)
40K24.85 mi0.85 mi17460-30511121-11611121-11621451(Top 81%)12553(Top 83%)12553(Top 238%)
25.2M25.20 mi0.35 mi17561-10111155-3411155-3420473(Top 77%)12140(Top 80%)12140(Top 230%)
Finish26.22 mi1.02 mi17645-8411182-2711182-2719093(Top 72%)11581(Top 76%)11581(Top 219%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11960

Males

9071

M18-39

9071

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11684

Males

8982

M18-39

8982

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11960

Males

9071

M18-39

9071

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11921

Males

8985

M18-39

8985

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13090

Males

9547

M18-39

9547

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15139

Males

10192

M18-39

10192

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

20001

Males

12208

M18-39

12208

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20630

Males

12401

M18-39

12401

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

21466

Males

12724

M18-39

12724

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21663

Males

12776

M18-39

12776

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21247

Males

12573

M18-39

12573

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21509

Males

12632

M18-39

12632

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21451

Males

12553

M18-39

12553

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20473

Males

12140

M18-39

12140

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19093

Males

11581

M18-39

11581

Passing Analysis

Category:
Athletes Passed
3069
Passed By
5098
Net Change
-2029
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15616
5K → 10K181224+1788#15616#13828
10K → 15K64025+615#13828#13213
15K → 20K40535+370#13213#12843
20K → Half3541-6#12843#12849
Half → 25K56479-423#12849#13272
25K → 30K121649-1637#13272#14909
30K → 20M13594-581#14909#15490
20M → 21M11577-566#15490#16056
21M → 35K8320-312#16056#16368
35K → 23M11479-468#16368#16836
23M → 24M13332-319#16836#17155
24M → 40K11316-305#17155#17460
40K → 25.2M10111-101#17460#17561
25.2M → Finish32116-84#17561#17645
TOTALS30695098-2029
📊

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