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BOSTON MARATHON 2024

Jason Guernsey

Bib: 11296•M

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 50%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M45-49)
#0 / 2218
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:02
Rank: #7617
Start → 5K
22:02 | 7:06/mi
10K· 6.21 mi
46:14
Rank: #9946 (-2329)
5K → 10K
24:12 | 7:47/mi
15K· 9.32 mi
1:10:52
Rank: #10988 (-1042)
10K → 15K
24:38 | 7:56/mi
20K· 12.43 mi
1:36:12
Rank: #11469 (-481)
15K → 20K
25:20 | 8:09/mi
Half· 13.11 mi
1:41:41
Rank: #11519 (-50)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:02:52
Rank: #12054 (-535)
Half → 25K
21:11 | 8:44/mi
30K· 18.64 mi
2:35:05
Rank: #13719 (-1665)
25K → 30K
32:13 | 10:22/mi
20M
2:48:53
Rank: #14048 (-329)
30K → 20M
13:48 | 10:09/mi
21M
2:57:29
Rank: #13545 (+503)
20M → 21M
8:36 | 8:36/mi
35K· 21.75 mi
3:03:46
Rank: #13384 (+161)
21M → 35K
6:17 | 8:24/mi
23M
3:15:33
Rank: #13363 (+21)
35K → 23M
11:47 | 9:25/mi
24M
3:23:57
Rank: #13128 (+235)
23M → 24M
8:24 | 8:24/mi
40K· 24.85 mi
3:31:35
Rank: #12980 (+148)
24M → 40K
7:38 | 8:56/mi
25.2M
3:34:54
Rank: #12893 (+87)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:43:15
Rank: #12725 (+168)
25.2M → Finish
8:21 | 8:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:41
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time2:01:34
Pace9:16 /mi
📊Positive Split: 19.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4922:027:0622:02
7:06
-
10K
6.21 mi11:14:0146:147:2624:12
7:47
+0:41
15K
9.32 mi11:38:391:10:527:3624:38
7:56
+0:09
20K
12.43 mi12:03:591:36:127:4425:20
8:09
+0:13
Half
13.11 mi12:09:281:41:417:455:29
8:02
-0:07
25K
15.53 mi12:30:392:02:527:5521:11
8:44
+0:42
30K
18.64 mi13:02:522:35:058:1932:13
10:22
+1:38
20M
20.00 mi13:16:402:48:538:2713:48
10:09
-0:13
21M
21.00 mi13:25:162:57:298:278:36
8:36
-1:33
35K
21.75 mi13:31:333:03:468:276:17
8:24
-0:12
23M
23.00 mi13:43:203:15:338:3011:47
9:25
+1:01
24M
24.00 mi13:51:443:23:578:308:24
8:24
-1:01
40K
24.85 mi13:59:223:31:358:317:38
8:56
+0:32
25.2M
25.20 mi14:02:413:34:548:323:19
9:37
+0:41
Finish
26.22 mi14:11:023:43:158:318:21
8:12
-1:25

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

7:06 /mi

Average Pace

8:31 /mi

Slowest Pace

10:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:10:52

32% of race

Time at Steady Pace

1:23:38

37% of race

Time at Slower Pace

1:08:45

31% of race

Average Pace: 8:31 /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 mi10:49:4922:027:0622:02
7:06
#7617
10K
6.21 mi11:14:0146:147:2624:12
7:47
#9946
15K
9.32 mi11:38:391:10:527:3624:38
7:56
#10988
20K
12.43 mi12:03:591:36:127:4425:20
8:09
#11469
Half
13.11 mi12:09:281:41:417:455:29
8:02
#11519
25K
15.53 mi12:30:392:02:527:5521:11
8:44
#12054
30K
18.64 mi13:02:522:35:058:1932:13
10:22
#13719
20M
20.00 mi13:16:402:48:538:2713:48
10:09
#14048
21M
21.00 mi13:25:162:57:298:278:36
8:36
#13545
35K
21.75 mi13:31:333:03:468:276:17
8:24
#13384
23M
23.00 mi13:43:203:15:338:3011:47
9:25
#13363
24M
24.00 mi13:51:443:23:578:308:24
8:24
#13128
40K
24.85 mi13:59:223:31:358:317:38
8:56
#12980
25.2M
25.20 mi14:02:413:34:548:323:19
9:37
#12893
Finish
26.22 mi14:11:023:43:158:318:21
8:12
#12725
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi76176571657112893(Top 50%)9122(Top 63%)9122(Top 411%)
10K6.21 mi3.10 mi9946-23297904-13337904-133312550(Top 49%)9013(Top 62%)9013(Top 406%)
15K9.32 mi3.11 mi10988-10428330-4268330-42612893(Top 50%)9122(Top 63%)9122(Top 411%)
20K12.43 mi3.11 mi11469-4818521-1918521-19112849(Top 50%)9057(Top 62%)9057(Top 408%)
Half13.11 mi0.68 mi11519-508535-148535-1412969(Top 51%)9068(Top 62%)9068(Top 409%)
25K15.53 mi2.42 mi12054-5358740-2058740-20514240(Top 56%)9469(Top 65%)9469(Top 427%)
30K18.64 mi3.11 mi13719-16659366-6269366-62618436(Top 72%)11128(Top 76%)11128(Top 502%)
20M20.00 mi1.36 mi14048-3299448-829448-8216963(Top 66%)10230(Top 70%)10230(Top 461%)
21M21.00 mi1.00 mi13545+5039167+2819167+2816704(Top 26%)5115(Top 35%)5115(Top 231%)
35K21.75 mi0.75 mi13384+1619064+1039064+10310127(Top 40%)6812(Top 47%)6812(Top 307%)
23M23.00 mi1.25 mi13363+219000+649000+6413106(Top 51%)8121(Top 56%)8121(Top 366%)
24M24.00 mi1.00 mi13128+2358847+1538847+1538846(Top 35%)5957(Top 41%)5957(Top 269%)
40K24.85 mi0.85 mi12980+1488743+1048743+10410511(Top 41%)6675(Top 46%)6675(Top 301%)
25.2M25.20 mi0.35 mi12893+878677+668677+669212(Top 36%)5949(Top 41%)5949(Top 268%)
Finish26.22 mi1.02 mi12725+1688561+1168561+1169732(Top 38%)6331(Top 43%)6331(Top 285%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

12893

Males

9122

M45-49

9122

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

12550

Males

9013

M45-49

9013

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

12893

Males

9122

M45-49

9122

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

12849

Males

9057

M45-49

9057

20K→Half

12.4 - 13.1 mi

Top 51%
×2stories
+19ft-37ft

Overall

12969

Males

9068

M45-49

9068

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14240

Males

9469

M45-49

9469

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

18436

Males

11128

M45-49

11128

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

16963

Males

10230

M45-49

10230

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

6704

Males

5115

M45-49

5115

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

10127

Males

6812

M45-49

6812

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

13106

Males

8121

M45-49

8121

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

8846

Males

5957

M45-49

5957

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10511

Males

6675

M45-49

6675

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9212

Males

5949

M45-49

5949

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

9732

Males

6331

M45-49

6331

Passing Analysis

Category:
Athletes Passed
1868
Passed By
6974
Net Change
-5108
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7617
5K → 10K82337-2329#7617#9946
10K → 15K361076-1042#9946#10988
15K → 20K101582-481#10988#11469
20K → Half2373-50#11469#11519
Half → 25K105640-535#11519#12054
25K → 30K361701-1665#12054#13719
30K → 20M65394-329#13719#14048
20M → 21M5030+503#14048#13545
21M → 35K17211+161#13545#13384
35K → 23M130109+21#13384#13363
23M → 24M24510+235#13363#13128
24M → 40K16618+148#13128#12980
40K → 25.2M969+87#12980#12893
25.2M → Finish18214+168#12893#12725
TOTALS18686974-5108
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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