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BOSTON MARATHON 2023

Simon Maclaurin

Bib: 17251•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
Top 8%
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
8:11/mi
25:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:05/mi
50:31
↑ 79↓ 1380.4%
15K· 9.32 mi
8:04/mi
1:15:34
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:40:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:46:11
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
2:05:40
↑ 66↓ 880.2%
30K· 18.64 mi
8:13/mi
2:31:11
↑ 181↓ 1480.2%
20M
8:09/mi
2:42:15
↑ 64↓ 500.2%
21M
8:56/mi
2:51:11
↑ 106↓ 241.6%
35K· 21.75 mi
8:01/mi
2:57:11
↑ 17↓ 861.7%
23M
8:04/mi
3:07:17
↑ 23↓ 630.6%
24M
7:53/mi
3:15:10
↓ 821.3%
40K· 24.85 mi
7:53/mi
3:21:54
↓ 200.3%
25.2M
8:25/mi
3:24:48
↑ 13↓ 160.2%
Finish· 26.22 mi
7:47/mi
3:32:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:46:11
Pace8:06 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:46:33
Pace8:08 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1525:248:1125:24
8:11
-
10K
6.21 mi11:45:2250:318:0825:07
8:05
-0:06
15K
9.32 mi12:10:251:15:348:0625:03
8:04
-0:01
20K
12.43 mi12:35:371:40:468:0725:12
8:07
+0:03
Half
13.11 mi12:41:021:46:118:065:25
7:56
-0:11
25K
15.53 mi13:00:312:05:408:0519:29
8:02
+0:06
30K
18.64 mi13:26:022:31:118:0725:31
8:13
+0:11
20M
20.00 mi13:37:062:42:158:0711:04
8:09
-0:04
21M
21.00 mi13:46:022:51:118:098:56
8:56
+0:47
35K
21.75 mi13:52:022:57:118:096:00
8:01
-0:55
23M
23.00 mi14:02:083:07:178:0910:06
8:04
+0:03
24M
24.00 mi14:10:013:15:108:087:53
7:53
-0:11
40K
24.85 mi14:16:453:21:548:076:44
7:53
0:00
25.2M
25.20 mi14:19:393:24:488:082:54
8:25
+0:32
Finish
26.22 mi14:27:353:32:448:077:56
7:47
-0:38

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

7:47 /mi

Average Pace

8:07 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:48

96% of race

Time at Steady Pace

8:56

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi11:20:1525:248:1125:24
8:11
#15255
10K
6.21 mi11:45:2250:318:0825:07
8:05
#15305
15K
9.32 mi12:10:251:15:348:0625:03
8:04
#15158
20K
12.43 mi12:35:371:40:468:0725:12
8:07
#14918
Half
13.11 mi12:41:021:46:118:065:25
7:56
#14875
25K
15.53 mi13:00:312:05:408:0519:29
8:02
#14579
30K
18.64 mi13:26:022:31:118:0725:31
8:13
#14179
20M
20.00 mi13:37:062:42:158:0711:04
8:09
#13925
21M
21.00 mi13:46:022:51:118:098:56
8:56
#13854
35K
21.75 mi13:52:022:57:118:096:00
8:01
#13781
23M
23.00 mi14:02:083:07:178:0910:06
8:04
#13538
24M
24.00 mi14:10:013:15:108:087:53
7:53
#13351
40K
24.85 mi14:16:453:21:548:076:44
7:53
#13183
25.2M
25.20 mi14:19:393:24:488:082:54
8:25
#13088
Finish
26.22 mi14:27:353:32:448:077:56
7:47
#12982
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi15255104281042814888(Top 56%)10254(Top 68%)10254(Top 1868%)
10K6.21 mi3.10 mi15305-5010444-1610444-1615391(Top 58%)10463(Top 69%)10463(Top 1906%)
15K9.32 mi3.11 mi15158+14710379+6510379+6514888(Top 56%)10254(Top 68%)10254(Top 1868%)
20K12.43 mi3.11 mi14918+24010267+11210267+11214279(Top 54%)9985(Top 66%)9985(Top 1819%)
Half13.11 mi0.68 mi14875+4310247+2010247+2013831(Top 52%)9825(Top 65%)9825(Top 1790%)
25K15.53 mi2.42 mi14579+29610103+14410103+14413017(Top 49%)9366(Top 62%)9366(Top 1706%)
30K18.64 mi3.11 mi14179+4009912+1919912+19112423(Top 47%)8985(Top 59%)8985(Top 1637%)
20M20.00 mi1.36 mi13925+2549794+1189794+11811298(Top 42%)8405(Top 55%)8405(Top 1531%)
21M21.00 mi1.00 mi13854+719752+429752+4213007(Top 49%)9040(Top 60%)9040(Top 1647%)
35K21.75 mi0.75 mi13781+739702+509702+5012249(Top 46%)8667(Top 57%)8667(Top 1579%)
23M23.00 mi1.25 mi13538+2439581+1219581+12110235(Top 38%)7616(Top 50%)7616(Top 1387%)
24M24.00 mi1.00 mi13351+1879484+979484+9710405(Top 39%)7614(Top 50%)7614(Top 1387%)
40K24.85 mi0.85 mi13183+1689394+909394+909171(Top 34%)6917(Top 46%)6917(Top 1260%)
25.2M25.20 mi0.35 mi13088+959337+579337+578974(Top 34%)6747(Top 44%)6747(Top 1229%)
Finish26.22 mi1.02 mi12982+1069275+629275+6210563(Top 40%)7587(Top 50%)7587(Top 1382%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14888

Males

10254

M65-69

10254

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15391

Males

10463

M65-69

10463

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14888

Males

10254

M65-69

10254

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

14279

Males

9985

M65-69

9985

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13831

Males

9825

M65-69

9825

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13017

Males

9366

M65-69

9366

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12423

Males

8985

M65-69

8985

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11298

Males

8405

M65-69

8405

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13007

Males

9040

M65-69

9040

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12249

Males

8667

M65-69

8667

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10235

Males

7616

M65-69

7616

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10405

Males

7614

M65-69

7614

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9171

Males

6917

M65-69

6917

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

8974

Males

6747

M65-69

6747

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10563

Males

7587

M65-69

7587

Passing Analysis

Category:
Athletes Passed
2962
Passed By
689
Net Change
+2273
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15255
5K → 10K282332-50#15255#15305
10K → 15K260113+147#15305#15158
15K → 20K31676+240#15158#14918
20K → Half5815+43#14918#14875
Half → 25K31519+296#14875#14579
25K → 30K42424+400#14579#14179
30K → 20M2595+254#14179#13925
20M → 21M12352+71#13925#13854
21M → 35K9118+73#13854#13781
35K → 23M2496+243#13781#13538
23M → 24M1925+187#13538#13351
24M → 40K1746+168#13351#13183
40K → 25.2M961+95#13183#13088
25.2M → Finish12317+106#13088#12982
TOTALS2962689+2273
📊

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