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BOSTON MARATHON 2023

Jim Sorensen

Bib: 22226•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
Top 27%
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
8:25/mi
26:09
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
52:04
↑ 79↓ 1380.4%
15K· 9.32 mi
8:33/mi
1:18:38
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:46:25
↑ 106↓ 860.1%
Half· 13.11 mi
8:58/mi
1:52:32
↑ 19↓ 370.5%
25K· 15.53 mi
9:09/mi
2:14:44
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:42:43
↑ 181↓ 1480.2%
20M
8:58/mi
2:54:54
↑ 64↓ 500.2%
21M
9:22/mi
3:04:16
↑ 106↓ 241.6%
35K· 21.75 mi
9:12/mi
3:11:09
↑ 17↓ 861.7%
23M
9:15/mi
3:22:44
↑ 23↓ 630.6%
24M
8:44/mi
3:31:28
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:38:59
↓ 200.3%
25.2M
9:17/mi
3:42:11
↑ 13↓ 160.2%
Finish· 26.22 mi
8:28/mi
3:50:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:32
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:58:17
Pace9:01 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1426:098:2526:09
8:25
-
10K
6.21 mi11:46:0952:048:2325:55
8:21
-0:04
15K
9.32 mi12:12:431:18:388:2626:34
8:33
+0:12
20K
12.43 mi12:40:301:46:258:3427:47
8:57
+0:24
Half
13.11 mi12:46:371:52:328:356:07
8:58
+0:01
25K
15.53 mi13:08:492:14:448:4022:12
9:09
+0:11
30K
18.64 mi13:36:482:42:438:4427:59
9:00
-0:09
20M
20.00 mi13:48:592:54:548:4512:11
8:58
-0:02
21M
21.00 mi13:58:213:04:168:469:22
9:22
+0:24
35K
21.75 mi14:05:143:11:098:476:53
9:12
-0:10
23M
23.00 mi14:16:493:22:448:4911:35
9:15
+0:03
24M
24.00 mi14:25:333:31:288:498:44
8:44
-0:31
40K
24.85 mi14:33:043:38:598:497:31
8:47
+0:03
25.2M
25.20 mi14:36:163:42:118:493:12
9:17
+0:30
Finish
26.22 mi14:44:543:50:498:498:38
8:28
-0:49

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

8:21 /mi

Average Pace

8:49 /mi

Slowest Pace

9:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:47

87% of race

Time at Steady Pace

31:02

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi11:20:1426:098:2526:09
8:25
#16999
10K
6.21 mi11:46:0952:048:2325:55
8:21
#17050
15K
9.32 mi12:12:431:18:388:2626:34
8:33
#17435
20K
12.43 mi12:40:301:46:258:3427:47
8:57
#17975
Half
13.11 mi12:46:371:52:328:356:07
8:58
#18111
25K
15.53 mi13:08:492:14:448:4022:12
9:09
#18416
30K
18.64 mi13:36:482:42:438:4427:59
9:00
#18154
20M
20.00 mi13:48:592:54:548:4512:11
8:58
#17999
21M
21.00 mi13:58:213:04:168:469:22
9:22
#17814
35K
21.75 mi14:05:143:11:098:476:53
9:12
#17882
23M
23.00 mi14:16:493:22:448:4911:35
9:15
#17864
24M
24.00 mi14:25:333:31:288:498:44
8:44
#17768
40K
24.85 mi14:33:043:38:598:497:31
8:47
#17678
25.2M
25.20 mi14:36:163:42:118:493:12
9:17
#17615
Finish
26.22 mi14:44:543:50:498:498:38
8:28
#17524
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi16999110541105418147(Top 68%)11538(Top 76%)11538(Top 2102%)
10K6.21 mi3.10 mi17050-5111084-3011084-3017193(Top 65%)11180(Top 74%)11180(Top 2036%)
15K9.32 mi3.11 mi17435-38511234-15011234-15018147(Top 68%)11538(Top 76%)11538(Top 2102%)
20K12.43 mi3.11 mi17975-54011449-21511449-21519415(Top 73%)12059(Top 79%)12059(Top 2197%)
Half13.11 mi0.68 mi18111-13611514-6511514-6520269(Top 76%)12414(Top 82%)12414(Top 2261%)
25K15.53 mi2.42 mi18416-30511620-10611620-10619630(Top 74%)12117(Top 80%)12117(Top 2207%)
30K18.64 mi3.11 mi18154+26211470+15011470+15017194(Top 65%)10990(Top 72%)10990(Top 2002%)
20M20.00 mi1.36 mi17999+15511392+7811392+7816341(Top 61%)10547(Top 69%)10547(Top 1921%)
21M21.00 mi1.00 mi17814+18511315+7711315+7715326(Top 58%)10069(Top 66%)10069(Top 1834%)
35K21.75 mi0.75 mi17882-6811332-1711332-1718712(Top 70%)11463(Top 76%)11463(Top 2088%)
23M23.00 mi1.25 mi17864+1811307+2511307+2517295(Top 65%)10824(Top 71%)10824(Top 1972%)
24M24.00 mi1.00 mi17768+9611257+5011257+5015842(Top 60%)10108(Top 67%)10108(Top 1841%)
40K24.85 mi0.85 mi17678+9011210+4711210+4715035(Top 56%)9708(Top 64%)9708(Top 1768%)
25.2M25.20 mi0.35 mi17615+6311172+3811172+3814070(Top 53%)9288(Top 61%)9288(Top 1692%)
Finish26.22 mi1.02 mi17524+9111130+4211130+4215228(Top 57%)9834(Top 65%)9834(Top 1791%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

18147

Males

11538

M65-69

11538

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17193

Males

11180

M65-69

11180

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

18147

Males

11538

M65-69

11538

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19415

Males

12059

M65-69

12059

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20269

Males

12414

M65-69

12414

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19630

Males

12117

M65-69

12117

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17194

Males

10990

M65-69

10990

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16341

Males

10547

M65-69

10547

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15326

Males

10069

M65-69

10069

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18712

Males

11463

M65-69

11463

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17295

Males

10824

M65-69

10824

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

15842

Males

10108

M65-69

10108

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15035

Males

9708

M65-69

9708

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14070

Males

9288

M65-69

9288

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

15228

Males

9834

M65-69

9834

Passing Analysis

Category:
Athletes Passed
1727
Passed By
2252
Net Change
-525
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16999
5K → 10K292343-51#16999#17050
10K → 15K76461-385#17050#17435
15K → 20K65605-540#17435#17975
20K → Half4140-136#17975#18111
Half → 25K55360-305#18111#18416
25K → 30K32563+262#18416#18154
30K → 20M17722+155#18154#17999
20M → 21M20116+185#17999#17814
21M → 35K32100-68#17814#17882
35K → 23M9779+18#17882#17864
23M → 24M11620+96#17864#17768
24M → 40K10616+90#17768#17678
40K → 25.2M674+63#17678#17615
25.2M → Finish11423+91#17615#17524
TOTALS17272252-525
📊

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