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BOSTON MARATHON 2023

Jason Ricedorff

Bib: 12206•M

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
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
8:21/mi
25:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:27/mi
52:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:18:56
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:45:59
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:51:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:59/mi
2:13:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:02/mi
2:41:46
↑ 181↓ 1480.2%
20M
9:40/mi
2:54:54
↑ 64↓ 500.2%
21M
9:47/mi
3:04:41
↑ 106↓ 241.6%
35K· 21.75 mi
8:01/mi
3:10:41
↑ 17↓ 861.7%
23M
8:23/mi
3:21:11
↑ 23↓ 630.6%
24M
8:14/mi
3:29:25
↓ 821.3%
40K· 24.85 mi
8:19/mi
3:36:32
↓ 200.3%
25.2M
9:02/mi
3:39:39
↑ 13↓ 160.2%
Finish· 26.22 mi
7:56/mi
3:47:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:54
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time1:55:50
Pace8:50 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:0625:588:2125:58
8:21
-
10K
6.21 mi11:23:2052:128:2426:14
8:27
+0:06
15K
9.32 mi11:50:041:18:568:2826:44
8:36
+0:09
20K
12.43 mi12:17:071:45:598:3227:03
8:42
+0:06
Half
13.11 mi12:23:021:51:548:325:55
8:40
-0:02
25K
15.53 mi12:44:502:13:428:3621:48
8:59
+0:19
30K
18.64 mi13:12:542:41:468:4128:04
9:02
+0:03
20M
20.00 mi13:26:022:54:548:4513:08
9:40
+0:38
21M
21.00 mi13:35:493:04:418:489:47
9:47
+0:07
35K
21.75 mi13:41:493:10:418:466:00
8:01
-1:46
23M
23.00 mi13:52:193:21:118:4510:30
8:23
+0:22
24M
24.00 mi14:00:333:29:258:448:14
8:14
-0:09
40K
24.85 mi14:07:403:36:328:437:07
8:19
+0:05
25.2M
25.20 mi14:10:473:39:398:433:07
9:02
+0:43
Finish
26.22 mi14:18:523:47:448:428:05
7:56
-1:06

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

7:56 /mi

Average Pace

8:42 /mi

Slowest Pace

9:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:26

13% of race

Time at Steady Pace

2:02:24

54% of race

Time at Slower Pace

1:15:54

33% of race

Average Pace: 8:41 /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 mi10:57:0625:588:2125:58
8:21
#16553
10K
6.21 mi11:23:2052:128:2426:14
8:27
#17212
15K
9.32 mi11:50:041:18:568:2826:44
8:36
#17641
20K
12.43 mi12:17:071:45:598:3227:03
8:42
#17750
Half
13.11 mi12:23:021:51:548:325:55
8:40
#17789
25K
15.53 mi12:44:502:13:428:3621:48
8:59
#17995
30K
18.64 mi13:12:542:41:468:4128:04
9:02
#17831
20M
20.00 mi13:26:022:54:548:4513:08
9:40
#17998
21M
21.00 mi13:35:493:04:418:489:47
9:47
#17940
35K
21.75 mi13:41:493:10:418:466:00
8:01
#17736
23M
23.00 mi13:52:193:21:118:4510:30
8:23
#17446
24M
24.00 mi14:00:333:29:258:448:14
8:14
#17248
40K
24.85 mi14:07:403:36:328:437:07
8:19
#17064
25.2M
25.20 mi14:10:473:39:398:433:07
9:02
#16995
Finish
26.22 mi14:18:523:47:448:428:05
7:56
#16798
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi16553108971089718465(Top 69%)11668(Top 77%)11668(Top 518%)
10K6.21 mi3.10 mi17212-65911130-23311130-23317879(Top 67%)11445(Top 75%)11445(Top 508%)
15K9.32 mi3.11 mi17641-42911322-19211322-19218465(Top 69%)11668(Top 77%)11668(Top 518%)
20K12.43 mi3.11 mi17750-10911353-3111353-3118146(Top 68%)11536(Top 76%)11536(Top 512%)
Half13.11 mi0.68 mi17789-3911370-1711370-1718720(Top 70%)11775(Top 78%)11775(Top 523%)
25K15.53 mi2.42 mi17995-20611443-7311443-7318895(Top 71%)11798(Top 78%)11798(Top 524%)
30K18.64 mi3.11 mi17831+16411353+9011353+9017352(Top 65%)11057(Top 73%)11057(Top 491%)
20M20.00 mi1.36 mi17998-16711391-3811391-3819430(Top 73%)11868(Top 78%)11868(Top 527%)
21M21.00 mi1.00 mi17940+5811363+2811363+2817177(Top 65%)10863(Top 72%)10863(Top 482%)
35K21.75 mi0.75 mi17736+20411268+9511268+9512273(Top 46%)8691(Top 57%)8691(Top 386%)
23M23.00 mi1.25 mi17446+29011136+13211136+13212491(Top 47%)8692(Top 57%)8692(Top 386%)
24M24.00 mi1.00 mi17248+19811053+8311053+8312824(Top 48%)8782(Top 58%)8782(Top 390%)
40K24.85 mi0.85 mi17064+18410948+10510948+10512216(Top 46%)8426(Top 56%)8426(Top 374%)
25.2M25.20 mi0.35 mi16995+6910907+4110907+4112725(Top 48%)8638(Top 57%)8638(Top 384%)
Finish26.22 mi1.02 mi16798+19710819+8810819+8811619(Top 44%)8112(Top 53%)8112(Top 360%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18465

Males

11668

M45-49

11668

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17879

Males

11445

M45-49

11445

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18465

Males

11668

M45-49

11668

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18146

Males

11536

M45-49

11536

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18720

Males

11775

M45-49

11775

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18895

Males

11798

M45-49

11798

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17352

Males

11057

M45-49

11057

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

19430

Males

11868

M45-49

11868

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17177

Males

10863

M45-49

10863

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12273

Males

8691

M45-49

8691

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12491

Males

8692

M45-49

8692

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12824

Males

8782

M45-49

8782

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12216

Males

8426

M45-49

8426

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12725

Males

8638

M45-49

8638

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11619

Males

8112

M45-49

8112

Passing Analysis

Category:
Athletes Passed
1986
Passed By
2231
Net Change
-245
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16553
5K → 10K105764-659#16553#17212
10K → 15K76505-429#17212#17641
15K → 20K129238-109#17641#17750
20K → Half2059-39#17750#17789
Half → 25K74280-206#17789#17995
25K → 30K26197+164#17995#17831
30K → 20M46213-167#17831#17998
20M → 21M11658+58#17998#17940
21M → 35K2062+204#17940#17736
35K → 23M2933+290#17736#17446
23M → 24M2013+198#17446#17248
24M → 40K1851+184#17248#17064
40K → 25.2M723+69#17064#16995
25.2M → Finish2025+197#16995#16798
TOTALS19862231-245
📊

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