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BOSTON MARATHON 2023

Ken Mclaughlin

Bib: 11119•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 41%
Division (M55-59)
#0 / 1422
Top 23%
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
7:20/mi
22:48
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
45:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:08:47
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:32:30
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:37:30
↑ 19↓ 370.5%
25K· 15.53 mi
7:43/mi
1:56:12
↑ 66↓ 880.2%
30K· 18.64 mi
7:58/mi
2:20:56
↑ 181↓ 1480.2%
20M
8:01/mi
2:31:50
↑ 64↓ 500.2%
21M
8:36/mi
2:40:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:00/mi
2:46:25
↑ 17↓ 861.7%
23M
8:10/mi
2:56:39
↑ 23↓ 630.6%
24M
7:54/mi
3:04:33
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:11:28
↓ 200.3%
25.2M
9:08/mi
3:14:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:04/mi
3:22:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:30
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:45:20
Pace8:02 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3722:487:2022:48
7:20
-
10K
6.21 mi11:12:2745:387:2122:50
7:21
+0:01
15K
9.32 mi11:35:361:08:477:2323:09
7:27
+0:06
20K
12.43 mi11:59:191:32:307:2723:43
7:38
+0:11
Half
13.11 mi12:04:191:37:307:265:00
7:20
-0:18
25K
15.53 mi12:23:011:56:127:2918:42
7:43
+0:23
30K
18.64 mi12:47:452:20:567:3424:44
7:58
+0:15
20M
20.00 mi12:58:392:31:507:3510:54
8:01
+0:03
21M
21.00 mi13:07:152:40:267:388:36
8:36
+0:35
35K
21.75 mi13:13:142:46:257:395:59
8:00
-0:36
23M
23.00 mi13:23:282:56:397:4110:14
8:10
+0:10
24M
24.00 mi13:31:223:04:337:417:54
7:54
-0:16
40K
24.85 mi13:38:173:11:287:426:55
8:05
+0:11
25.2M
25.20 mi13:41:263:14:377:433:09
9:08
+1:03
Finish
26.22 mi13:49:393:22:507:458:13
8:04
-1:04

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

7:20 /mi

Average Pace

7:45 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:12

57% of race

Time at Steady Pace

1:14:53

37% of race

Time at Slower Pace

11:45

6% of race

Average Pace: 7:44 /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 mi10:49:3722:487:2022:48
7:20
#8374
10K
6.21 mi11:12:2745:387:2122:50
7:21
#8753
15K
9.32 mi11:35:361:08:477:2323:09
7:27
#9044
20K
12.43 mi11:59:191:32:307:2723:43
7:38
#9358
Half
13.11 mi12:04:191:37:307:265:00
7:20
#9324
25K
15.53 mi12:23:011:56:127:2918:42
7:43
#9480
30K
18.64 mi12:47:452:20:567:3424:44
7:58
#9661
20M
20.00 mi12:58:392:31:507:3510:54
8:01
#9678
21M
21.00 mi13:07:152:40:267:388:36
8:36
#9731
35K
21.75 mi13:13:142:46:257:395:59
8:00
#9813
23M
23.00 mi13:23:282:56:397:4110:14
8:10
#9845
24M
24.00 mi13:31:223:04:337:417:54
7:54
#9848
40K
24.85 mi13:38:173:11:287:426:55
8:05
#9860
25.2M
25.20 mi13:41:263:14:377:433:09
9:08
#9904
Finish
26.22 mi13:49:393:22:507:458:13
8:04
#10002
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi8374721872189771(Top 37%)8019(Top 53%)8019(Top 564%)
10K6.21 mi3.10 mi8753-3797437-2197437-2199223(Top 35%)7709(Top 51%)7709(Top 542%)
15K9.32 mi3.11 mi9044-2917588-1517588-1519771(Top 37%)8019(Top 53%)8019(Top 564%)
20K12.43 mi3.11 mi9358-3147768-1807768-18010339(Top 39%)8256(Top 54%)8256(Top 581%)
Half13.11 mi0.68 mi9324+347744+247744+248816(Top 33%)7407(Top 49%)7407(Top 521%)
25K15.53 mi2.42 mi9480-1567832-887832-8810376(Top 39%)8191(Top 54%)8191(Top 576%)
30K18.64 mi3.11 mi9661-1817903-717903-7110568(Top 40%)8126(Top 54%)8126(Top 571%)
20M20.00 mi1.36 mi9678-177884+197884+1910398(Top 39%)7956(Top 52%)7956(Top 559%)
21M21.00 mi1.00 mi9731-537900-167900-1611035(Top 41%)8129(Top 54%)8129(Top 572%)
35K21.75 mi0.75 mi9813-827922-227922-2212060(Top 45%)8569(Top 56%)8569(Top 603%)
23M23.00 mi1.25 mi9845-327908+147908+1410961(Top 41%)7942(Top 52%)7942(Top 559%)
24M24.00 mi1.00 mi9848-37877+317877+3110495(Top 39%)7650(Top 50%)7650(Top 538%)
40K24.85 mi0.85 mi9860-127852+257852+2510617(Top 40%)7658(Top 50%)7658(Top 539%)
25.2M25.20 mi0.35 mi9904-447862-107862-1013190(Top 50%)8831(Top 58%)8831(Top 621%)
Finish26.22 mi1.02 mi10002-987893-317893-3112521(Top 47%)8528(Top 56%)8528(Top 600%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9771

Males

8019

M55-59

8019

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9223

Males

7709

M55-59

7709

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9771

Males

8019

M55-59

8019

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10339

Males

8256

M55-59

8256

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8816

Males

7407

M55-59

7407

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10376

Males

8191

M55-59

8191

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10568

Males

8126

M55-59

8126

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10398

Males

7956

M55-59

7956

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11035

Males

8129

M55-59

8129

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12060

Males

8569

M55-59

8569

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10961

Males

7942

M55-59

7942

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10495

Males

7650

M55-59

7650

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10617

Males

7658

M55-59

7658

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13190

Males

8831

M55-59

8831

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12521

Males

8528

M55-59

8528

Passing Analysis

Category:
Athletes Passed
904*
Passed By
2531
Net Change
-1628
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8374
5K → 10K111490-379#8374#8753
10K → 15K69360-291#8753#9044
15K → 20K58372-314#9044#9358
20K → Half4713+34#9358#9324
Half → 25K75231-156#9324#9480
25K → 30K120*301-181#9480#9661
30K → 20M8299-17#9661#9678
20M → 21M51104-53#9678#9731
21M → 35K25107-82#9731#9813
35K → 23M77109-32#9813#9845
23M → 24M6366-3#9845#9848
24M → 40K6880-12#9848#9860
40K → 25.2M1660-44#9860#9904
25.2M → Finish42139-98#9904#10002
TOTALS904*2531-1628

* 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