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BOSTON MARATHON 2023

Timothy Sibley

Bib: 15254•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 (M50-54)
#0 / 2052
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
7:42/mi
23:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
48:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:12:26
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:36:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:41:55
↑ 19↓ 370.5%
25K· 15.53 mi
7:57/mi
2:01:11
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:28:00
↑ 181↓ 1480.2%
20M
8:40/mi
2:39:47
↑ 64↓ 500.2%
21M
9:22/mi
2:49:09
↑ 106↓ 241.6%
35K· 21.75 mi
8:11/mi
2:55:16
↑ 17↓ 861.7%
23M
8:34/mi
3:05:59
↑ 23↓ 630.6%
24M
8:16/mi
3:14:15
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:21:23
↓ 200.3%
25.2M
9:25/mi
3:24:38
↑ 13↓ 160.2%
Finish· 26.22 mi
8:21/mi
3:33:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:55
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:51:14
Pace8:29 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2623:547:4223:54
7:42
-
10K
6.21 mi11:17:5148:197:4724:25
7:52
+0:10
15K
9.32 mi11:41:581:12:267:4624:07
7:46
-0:06
20K
12.43 mi12:06:141:36:427:4724:16
7:49
+0:03
Half
13.11 mi12:11:271:41:557:465:13
7:39
-0:10
25K
15.53 mi12:30:432:01:117:4819:16
7:57
+0:18
30K
18.64 mi12:57:322:28:007:5626:49
8:38
+0:41
20M
20.00 mi13:09:192:39:477:5911:47
8:40
+0:02
21M
21.00 mi13:18:412:49:098:039:22
9:22
+0:42
35K
21.75 mi13:24:482:55:168:046:07
8:11
-1:11
23M
23.00 mi13:35:313:05:598:0510:43
8:34
+0:23
24M
24.00 mi13:43:473:14:158:068:16
8:16
-0:18
40K
24.85 mi13:50:553:21:238:067:08
8:21
+0:05
25.2M
25.20 mi13:54:103:24:388:073:15
9:25
+1:04
Finish
26.22 mi14:02:413:33:098:088:31
8:21
-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

7:39 /mi

Average Pace

8:08 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:11

57% of race

Time at Steady Pace

30:02

14% of race

Time at Slower Pace

1:01:56

29% of race

Average Pace: 8:08 /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 mi10:53:2623:547:4223:54
7:42
#11369
10K
6.21 mi11:17:5148:197:4724:25
7:52
#12496
15K
9.32 mi11:41:581:12:267:4624:07
7:46
#12413
20K
12.43 mi12:06:141:36:427:4724:16
7:49
#12221
Half
13.11 mi12:11:271:41:557:465:13
7:39
#12173
25K
15.53 mi12:30:432:01:117:4819:16
7:57
#12182
30K
18.64 mi12:57:322:28:007:5626:49
8:38
#12817
20M
20.00 mi13:09:192:39:477:5911:47
8:40
#12955
21M
21.00 mi13:18:412:49:098:039:22
9:22
#13087
35K
21.75 mi13:24:482:55:168:046:07
8:11
#13081
23M
23.00 mi13:35:313:05:598:0510:43
8:34
#13091
24M
24.00 mi13:43:473:14:158:068:16
8:16
#13072
40K
24.85 mi13:50:553:21:238:067:08
8:21
#13032
25.2M
25.20 mi13:54:103:24:388:073:15
9:25
#13047
Finish
26.22 mi14:02:413:33:098:088:31
8:21
#13096
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi113698833883312392(Top 47%)9250(Top 61%)9250(Top 451%)
10K6.21 mi3.10 mi12496-11279325-4929325-49213627(Top 51%)9803(Top 65%)9803(Top 478%)
15K9.32 mi3.11 mi12413+839270+559270+5512392(Top 47%)9250(Top 61%)9250(Top 451%)
20K12.43 mi3.11 mi12221+1929160+1109160+11011825(Top 44%)8946(Top 59%)8946(Top 436%)
Half13.11 mi0.68 mi12173+489136+249136+2411387(Top 43%)8820(Top 58%)8820(Top 430%)
25K15.53 mi2.42 mi12182-99125+119125+1112270(Top 46%)9021(Top 59%)9021(Top 440%)
30K18.64 mi3.11 mi12817-6359360-2359360-23515100(Top 57%)10083(Top 66%)10083(Top 491%)
20M20.00 mi1.36 mi12955-1389397-379397-3714667(Top 55%)9835(Top 65%)9835(Top 479%)
21M21.00 mi1.00 mi13087-1329439-429439-4215310(Top 58%)10053(Top 66%)10053(Top 490%)
35K21.75 mi0.75 mi13081+69423+169423+1613248(Top 50%)9089(Top 60%)9089(Top 443%)
23M23.00 mi1.25 mi13091-109398+259398+2513565(Top 51%)9173(Top 60%)9173(Top 447%)
24M24.00 mi1.00 mi13072+199365+339365+3313032(Top 49%)8867(Top 58%)8867(Top 432%)
40K24.85 mi0.85 mi13032+409322+439322+4312312(Top 46%)8468(Top 56%)8468(Top 413%)
25.2M25.20 mi0.35 mi13047-159317+59317+514750(Top 55%)9554(Top 63%)9554(Top 466%)
Finish26.22 mi1.02 mi13096-499323-69323-614426(Top 54%)9446(Top 62%)9446(Top 460%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12392

Males

9250

M50-54

9250

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13627

Males

9803

M50-54

9803

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12392

Males

9250

M50-54

9250

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11825

Males

8946

M50-54

8946

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

11387

Males

8820

M50-54

8820

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

12270

Males

9021

M50-54

9021

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15100

Males

10083

M50-54

10083

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14667

Males

9835

M50-54

9835

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15310

Males

10053

M50-54

10053

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

13248

Males

9089

M50-54

9089

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13565

Males

9173

M50-54

9173

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13032

Males

8867

M50-54

8867

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12312

Males

8468

M50-54

8468

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14750

Males

9554

M50-54

9554

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14426

Males

9446

M50-54

9446

Passing Analysis

Category:
Athletes Passed
1310
Passed By
3037
Net Change
-1727
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11369
5K → 10K491176-1127#11369#12496
10K → 15K244161+83#12496#12413
15K → 20K27381+192#12413#12221
20K → Half6315+48#12221#12173
Half → 25K125134-9#12173#12182
25K → 30K60695-635#12182#12817
30K → 20M68206-138#12817#12955
20M → 21M56188-132#12955#13087
21M → 35K6256+6#13087#13081
35K → 23M90100-10#13081#13091
23M → 24M7253+19#13091#13072
24M → 40K8242+40#13072#13032
40K → 25.2M1934-15#13032#13047
25.2M → Finish4796-49#13047#13096
TOTALS13103037-1727
📊

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