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BOSTON MARATHON 2023

Jabez Pieters

Bib: 30133•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:32
Rank: #23805
Start → 5K
31:32 | 10:09/mi
10K· 6.21 mi
1:03:04
Rank: #23959 (-154)
5K → 10K
31:32 | 10:09/mi
15K· 9.32 mi
1:35:51
Rank: #24181 (-222)
10K → 15K
32:47 | 10:33/mi
20K· 12.43 mi
2:10:08
Rank: #24369 (-188)
15K → 20K
34:17 | 11:02/mi
Half· 13.11 mi
2:17:01
Rank: #24322 (+47)
20K → Half
6:53 | 10:05/mi
25K· 15.53 mi
2:43:42
Rank: #24251 (+71)
Half → 25K
26:41 | 11:00/mi
30K· 18.64 mi
3:18:58
Rank: #24117 (+134)
25K → 30K
35:16 | 11:21/mi
20M
3:34:49
Rank: #24103 (+14)
30K → 20M
15:51 | 11:40/mi
21M
3:47:24
Rank: #24080 (+23)
20M → 21M
12:35 | 12:35/mi
35K· 21.75 mi
3:55:09
Rank: #24027 (+53)
21M → 35K
7:45 | 10:22/mi
23M
4:09:52
Rank: #24012 (+15)
35K → 23M
14:43 | 11:45/mi
24M
4:21:03
Rank: #23988 (+24)
23M → 24M
11:11 | 11:11/mi
40K· 24.85 mi
4:31:07
Rank: #23980 (+8)
24M → 40K
10:04 | 11:46/mi
25.2M
4:35:30
Rank: #23976 (+4)
40K → 25.2M
4:23 | 12:43/mi
Finish· 26.22 mi
4:46:40
Rank: #23970 (+6)
25.2M → Finish
11:10 | 10:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:01
Pace10:27 /mi
2nd Half
Distance13.11 mi
Time2:29:39
Pace11:25 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2131:3210:0931:32
10:09
-
10K
6.21 mi12:25:531:03:0410:0931:32
10:09
0:00
15K
9.32 mi12:58:401:35:5110:1732:47
10:33
+0:24
20K
12.43 mi13:32:572:10:0810:2834:17
11:02
+0:29
Half
13.11 mi13:39:502:17:0110:276:53
10:05
-0:57
25K
15.53 mi14:06:312:43:4210:3226:41
11:00
+0:55
30K
18.64 mi14:41:473:18:5810:4035:16
11:21
+0:21
20M
20.00 mi14:57:383:34:4910:4415:51
11:40
+0:19
21M
21.00 mi15:10:133:47:2410:5012:35
12:35
+0:55
35K
21.75 mi15:17:583:55:0910:497:45
10:22
-2:13
23M
23.00 mi15:32:414:09:5210:5214:43
11:45
+1:23
24M
24.00 mi15:43:524:21:0310:5311:11
11:11
-0:34
40K
24.85 mi15:53:564:31:0710:5410:04
11:46
+0:35
25.2M
25.20 mi15:58:194:35:3010:564:23
12:43
+0:57
Finish
26.22 mi16:09:294:46:4010:5611:10
10:57
-1:46

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

10:05 /mi

Average Pace

10:56 /mi

Slowest Pace

12:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:29

39% of race

Time at Steady Pace

1:58:35

41% of race

Time at Slower Pace

57:36

20% of race

Average Pace: 10:56 /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 mi11:54:2131:3210:0931:32
10:09
#23805
10K
6.21 mi12:25:531:03:0410:0931:32
10:09
#23959
15K
9.32 mi12:58:401:35:5110:1732:47
10:33
#24181
20K
12.43 mi13:32:572:10:0810:2834:17
11:02
#24369
Half
13.11 mi13:39:502:17:0110:276:53
10:05
#24322
25K
15.53 mi14:06:312:43:4210:3226:41
11:00
#24251
30K
18.64 mi14:41:473:18:5810:4035:16
11:21
#24117
20M
20.00 mi14:57:383:34:4910:4415:51
11:40
#24103
21M
21.00 mi15:10:133:47:2410:5012:35
12:35
#24080
35K
21.75 mi15:17:583:55:0910:497:45
10:22
#24027
23M
23.00 mi15:32:414:09:5210:5214:43
11:45
#24012
24M
24.00 mi15:43:524:21:0310:5311:11
11:11
#23988
40K
24.85 mi15:53:564:31:0710:5410:04
11:46
#23980
25.2M
25.20 mi15:58:194:35:3010:564:23
12:43
#23976
Finish
26.22 mi16:09:294:46:4010:5611:10
10:57
#23970
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23805139911399124550(Top 92%)14320(Top 94%)14320(Top 1007%)
10K6.21 mi3.10 mi23959-15414067-7614067-7624013(Top 90%)14099(Top 93%)14099(Top 991%)
15K9.32 mi3.11 mi24181-22214169-10214169-10224550(Top 92%)14320(Top 94%)14320(Top 1007%)
20K12.43 mi3.11 mi24369-18814245-7614245-7624671(Top 93%)14355(Top 95%)14355(Top 1009%)
Half13.11 mi0.68 mi24322+4714225+2014225+2023450(Top 88%)13825(Top 91%)13825(Top 972%)
25K15.53 mi2.42 mi24251+7114181+4414181+4423987(Top 90%)14015(Top 92%)14015(Top 986%)
30K18.64 mi3.11 mi24117+13414112+6914112+6923650(Top 89%)13821(Top 91%)13821(Top 972%)
20M20.00 mi1.36 mi24103+1414086+2614086+2623773(Top 89%)13807(Top 91%)13807(Top 971%)
21M21.00 mi1.00 mi24080+2314068+1814068+1823557(Top 88%)13697(Top 90%)13697(Top 963%)
35K21.75 mi0.75 mi24027+5314047+2114047+2122125(Top 83%)12985(Top 86%)12985(Top 913%)
23M23.00 mi1.25 mi24012+1514025+2214025+2223652(Top 89%)13702(Top 90%)13702(Top 964%)
24M24.00 mi1.00 mi23988+2414008+1714008+1723377(Top 88%)13519(Top 89%)13519(Top 951%)
40K24.85 mi0.85 mi23980+813995+1313995+1323601(Top 89%)13585(Top 90%)13585(Top 955%)
25.2M25.20 mi0.35 mi23976+413993+213993+223588(Top 89%)13590(Top 90%)13590(Top 956%)
Finish26.22 mi1.02 mi23970+613984+913984+923883(Top 90%)13764(Top 91%)13764(Top 968%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

24550

Males

14320

M55-59

14320

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

24013

Males

14099

M55-59

14099

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

24550

Males

14320

M55-59

14320

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

24671

Males

14355

M55-59

14355

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

23450

Males

13825

M55-59

13825

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

23987

Males

14015

M55-59

14015

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

23650

Males

13821

M55-59

13821

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23773

Males

13807

M55-59

13807

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

23557

Males

13697

M55-59

13697

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

22125

Males

12985

M55-59

12985

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

23652

Males

13702

M55-59

13702

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

23377

Males

13519

M55-59

13519

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23601

Males

13585

M55-59

13585

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23588

Males

13590

M55-59

13590

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

23883

Males

13764

M55-59

13764

Passing Analysis

Category:
Athletes Passed
905
Passed By
1070
Net Change
-165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23805
5K → 10K120274-154#23805#23959
10K → 15K53275-222#23959#24181
15K → 20K56244-188#24181#24369
20K → Half503+47#24369#24322
Half → 25K12251+71#24322#24251
25K → 30K18854+134#24251#24117
30K → 20M6046+14#24117#24103
20M → 21M4825+23#24103#24080
21M → 35K574+53#24080#24027
35K → 23M4328+15#24027#24012
23M → 24M3410+24#24012#23988
24M → 40K3527+8#23988#23980
40K → 25.2M128+4#23980#23976
25.2M → Finish2721+6#23976#23970
TOTALS9051070-165
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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