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BOSTON MARATHON 2023

Robert Jackson

Bib: 30806•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
9:43/mi
30:10
↑ 97↓ 3451.5%
10K· 6.21 mi
9:03/mi
58:16
↑ 79↓ 1380.4%
15K· 9.32 mi
9:19/mi
1:27:13
↑ 67↓ 78
20K· 12.43 mi
9:27/mi
1:56:36
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
2:03:03
↑ 19↓ 370.5%
25K· 15.53 mi
10:12/mi
2:27:46
↑ 66↓ 880.2%
30K· 18.64 mi
10:14/mi
2:59:33
↑ 181↓ 1480.2%
20M
11:17/mi
3:14:53
↑ 64↓ 500.2%
21M
12:27/mi
3:27:20
↑ 106↓ 241.6%
35K· 21.75 mi
12:11/mi
3:36:27
↑ 17↓ 861.7%
23M
13:11/mi
3:52:58
↑ 23↓ 630.6%
24M
13:16/mi
4:06:14
↓ 821.3%
40K· 24.85 mi
13:01/mi
4:17:22
↓ 200.3%
25.2M
14:15/mi
4:22:17
↑ 13↓ 160.2%
Finish· 26.22 mi
12:29/mi
4:35:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:03
Pace9:23 /mi
2nd Half
Distance13.11 mi
Time2:31:57
Pace11:35 /mi
📊Positive Split: 23.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2130:109:4330:10
9:43
-
10K
6.21 mi12:18:2758:169:2328:06
9:03
-0:40
15K
9.32 mi12:47:241:27:139:2128:57
9:19
+0:16
20K
12.43 mi13:16:471:56:369:2329:23
9:27
+0:08
Half
13.11 mi13:23:142:03:039:236:27
9:27
0:00
25K
15.53 mi13:47:572:27:469:3124:43
10:12
+0:45
30K
18.64 mi14:19:442:59:339:3831:47
10:14
+0:02
20M
20.00 mi14:35:043:14:539:4515:20
11:17
+1:03
21M
21.00 mi14:47:313:27:209:5212:27
12:27
+1:10
35K
21.75 mi14:56:383:36:279:579:07
12:11
-0:16
23M
23.00 mi15:13:093:52:5810:0816:31
13:11
+1:00
24M
24.00 mi15:26:254:06:1410:1613:16
13:16
+0:05
40K
24.85 mi15:37:334:17:2210:2111:08
13:01
-0:15
25.2M
25.20 mi15:42:284:22:1710:244:55
14:15
+1:14
Finish
26.22 mi15:55:114:35:0010:3012:43
12:29
-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

9:03 /mi

Average Pace

10:30 /mi

Slowest Pace

14:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:33

65% of race

Time at Steady Pace

15:20

6% of race

Time at Slower Pace

1:20:07

29% of race

Average Pace: 10:29 /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 mi11:50:2130:109:4330:10
9:43
#22684
10K
6.21 mi12:18:2758:169:2328:06
9:03
#21985
15K
9.32 mi12:47:241:27:139:2128:57
9:19
#21856
20K
12.43 mi13:16:471:56:369:2329:23
9:27
#21752
Half
13.11 mi13:23:142:03:039:236:27
9:27
#21762
25K
15.53 mi13:47:572:27:469:3124:43
10:12
#21930
30K
18.64 mi14:19:442:59:339:3831:47
10:14
#21859
20M
20.00 mi14:35:043:14:539:4515:20
11:17
#22006
21M
21.00 mi14:47:313:27:209:5212:27
12:27
#22117
35K
21.75 mi14:56:383:36:279:579:07
12:11
#22261
23M
23.00 mi15:13:093:52:5810:0816:31
13:11
#22544
24M
24.00 mi15:26:254:06:1410:1613:16
13:16
#22777
40K
24.85 mi15:37:334:17:2210:2111:08
13:01
#22896
25.2M
25.20 mi15:42:284:22:1710:244:55
14:15
#22946
Finish
26.22 mi15:55:114:35:0010:3012:43
12:29
#23114
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22684134371343721699(Top 82%)13063(Top 86%)13063(Top 247%)
10K6.21 mi3.10 mi21985+69913117+32013117+32021058(Top 79%)12741(Top 84%)12741(Top 241%)
15K9.32 mi3.11 mi21856+12913079+3813079+3821699(Top 82%)13063(Top 86%)13063(Top 247%)
20K12.43 mi3.11 mi21752+10413047+3213047+3221421(Top 80%)12922(Top 85%)12922(Top 245%)
Half13.11 mi0.68 mi21762-1013052-513052-521974(Top 83%)13188(Top 87%)13188(Top 250%)
25K15.53 mi2.42 mi21930-16813121-6913121-6922602(Top 85%)13406(Top 88%)13406(Top 254%)
30K18.64 mi3.11 mi21859+7113086+3513086+3521598(Top 81%)12899(Top 85%)12899(Top 244%)
20M20.00 mi1.36 mi22006-14713136-5013136-5023147(Top 87%)13530(Top 89%)13530(Top 256%)
21M21.00 mi1.00 mi22117-11113171-3513171-3523388(Top 88%)13613(Top 90%)13613(Top 258%)
35K21.75 mi0.75 mi22261-14413232-6113232-6124869(Top 93%)14257(Top 94%)14257(Top 270%)
23M23.00 mi1.25 mi22544-28313339-10713339-10725261(Top 95%)14466(Top 95%)14466(Top 274%)
24M24.00 mi1.00 mi22777-23313436-9713436-9725651(Top 96%)14625(Top 96%)14625(Top 277%)
40K24.85 mi0.85 mi22896-11913485-4913485-4924945(Top 94%)14273(Top 94%)14273(Top 270%)
25.2M25.20 mi0.35 mi22946-5013512-2713512-2725183(Top 95%)14375(Top 95%)14375(Top 272%)
Finish26.22 mi1.02 mi23114-16813584-7213584-7225666(Top 96%)14630(Top 96%)14630(Top 277%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21699

Males

13063

M18-39

13063

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

21058

Males

12741

M18-39

12741

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21699

Males

13063

M18-39

13063

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21421

Males

12922

M18-39

12922

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

21974

Males

13188

M18-39

13188

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22602

Males

13406

M18-39

13406

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21598

Males

12899

M18-39

12899

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

23147

Males

13530

M18-39

13530

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

23388

Males

13613

M18-39

13613

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

24869

Males

14257

M18-39

14257

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

25261

Males

14466

M18-39

14466

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25651

Males

14625

M18-39

14625

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24945

Males

14273

M18-39

14273

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25183

Males

14375

M18-39

14375

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

25666

Males

14630

M18-39

14630

Passing Analysis

Category:
Athletes Passed
1524
Passed By
1954
Net Change
-430
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22684
5K → 10K74243+699#22684#21985
10K → 15K237108+129#21985#21856
15K → 20K18480+104#21856#21752
20K → Half1727-10#21752#21762
Half → 25K55223-168#21762#21930
25K → 30K173102+71#21930#21859
30K → 20M34181-147#21859#22006
20M → 21M32143-111#22006#22117
21M → 35K6150-144#22117#22261
35K → 23M16299-283#22261#22544
23M → 24M4237-233#22544#22777
24M → 40K9128-119#22777#22896
40K → 25.2M454-50#22896#22946
25.2M → Finish11179-168#22946#23114
TOTALS15241954-430
📊

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