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BOSTON MARATHON 2023

Steven Fransblow

Bib: 29923•M

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
29:22
Rank: #21955
Start → 5K
29:22 | 9:27/mi
10K· 6.21 mi
58:46
Rank: #22227 (-272)
5K → 10K
29:24 | 9:28/mi
15K· 9.32 mi
1:28:15
Rank: #22198 (+29)
10K → 15K
29:29 | 9:29/mi
20K· 12.43 mi
1:58:05
Rank: #22108 (+90)
15K → 20K
29:50 | 9:36/mi
Half· 13.11 mi
2:04:35
Rank: #22118 (-10)
20K → Half
6:30 | 9:32/mi
25K· 15.53 mi
2:31:20
Rank: #22566 (-448)
Half → 25K
26:45 | 11:02/mi
30K· 18.64 mi
3:04:52
Rank: #22601 (-35)
25K → 30K
33:32 | 10:48/mi
20M
3:19:30
Rank: #22569 (+32)
30K → 20M
14:38 | 10:46/mi
21M
3:31:16
Rank: #22571 (-2)
20M → 21M
11:46 | 11:46/mi
35K· 21.75 mi
3:39:00
Rank: #22532 (+39)
21M → 35K
7:44 | 10:20/mi
23M
3:52:51
Rank: #22532
35K → 23M
13:51 | 11:04/mi
24M
4:03:56
Rank: #22563 (-31)
23M → 24M
11:05 | 11:05/mi
40K· 24.85 mi
4:13:12
Rank: #22544 (+19)
24M → 40K
9:16 | 10:50/mi
25.2M
4:17:14
Rank: #22541 (+3)
40K → 25.2M
4:02 | 11:42/mi
Finish· 26.22 mi
4:27:55
Rank: #22553 (-12)
25.2M → Finish
10:41 | 10:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:35
Pace9:30 /mi
2nd Half
Distance13.11 mi
Time2:23:20
Pace10:56 /mi
📊Positive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:4229:229:2729:22
9:27
-
10K
6.21 mi12:19:0658:469:2729:24
9:28
+0:01
15K
9.32 mi12:48:351:28:159:2829:29
9:29
+0:01
20K
12.43 mi13:18:251:58:059:3029:50
9:36
+0:07
Half
13.11 mi13:24:552:04:359:306:30
9:32
-0:04
25K
15.53 mi13:51:402:31:209:4526:45
11:02
+1:30
30K
18.64 mi14:25:123:04:529:5533:32
10:48
-0:14
20M
20.00 mi14:39:503:19:309:5814:38
10:46
-0:02
21M
21.00 mi14:51:363:31:1610:0411:46
11:46
+1:00
35K
21.75 mi14:59:203:39:0010:047:44
10:20
-1:26
23M
23.00 mi15:13:113:52:5110:0713:51
11:04
+0:44
24M
24.00 mi15:24:164:03:5610:1011:05
11:05
+0:01
40K
24.85 mi15:33:324:13:1210:119:16
10:50
-0:15
25.2M
25.20 mi15:37:344:17:1410:124:02
11:42
+0:52
Finish
26.22 mi15:48:154:27:5510:1410:41
10:29
-1:13

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

9:27 /mi

Average Pace

10:14 /mi

Slowest Pace

11:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12:19

49% of race

Time at Steady Pace

1:59:48

45% of race

Time at Slower Pace

15:48

6% of race

Average Pace: 10:13 /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 mi11:49:4229:229:2729:22
9:27
#21955
10K
6.21 mi12:19:0658:469:2729:24
9:28
#22227
15K
9.32 mi12:48:351:28:159:2829:29
9:29
#22198
20K
12.43 mi13:18:251:58:059:3029:50
9:36
#22108
Half
13.11 mi13:24:552:04:359:306:30
9:32
#22118
25K
15.53 mi13:51:402:31:209:4526:45
11:02
#22566
30K
18.64 mi14:25:123:04:529:5533:32
10:48
#22601
20M
20.00 mi14:39:503:19:309:5814:38
10:46
#22569
21M
21.00 mi14:51:363:31:1610:0411:46
11:46
#22571
35K
21.75 mi14:59:203:39:0010:047:44
10:20
#22532
23M
23.00 mi15:13:113:52:5110:0713:51
11:04
#22532
24M
24.00 mi15:24:164:03:5610:1011:05
11:05
#22563
40K
24.85 mi15:33:324:13:1210:119:16
10:50
#22544
25.2M
25.20 mi15:37:344:17:1410:124:02
11:42
#22541
Finish
26.22 mi15:48:154:27:5510:1410:41
10:29
#22553
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi21955130761307622229(Top 83%)13288(Top 88%)13288(Top 590%)
10K6.21 mi3.10 mi22227-27213242-16613242-16622407(Top 84%)13350(Top 88%)13350(Top 593%)
15K9.32 mi3.11 mi22198+2913241+113241+122229(Top 83%)13288(Top 88%)13288(Top 590%)
20K12.43 mi3.11 mi22108+9013199+4213199+4221861(Top 82%)13121(Top 86%)13121(Top 583%)
Half13.11 mi0.68 mi22118-1013202-313202-322167(Top 83%)13277(Top 87%)13277(Top 590%)
25K15.53 mi2.42 mi22566-44813406-20413406-20424024(Top 90%)14036(Top 92%)14036(Top 623%)
30K18.64 mi3.11 mi22601-3513391+1513391+1522776(Top 86%)13416(Top 88%)13416(Top 596%)
20M20.00 mi1.36 mi22569+3213373+1813373+1822284(Top 84%)13132(Top 87%)13132(Top 583%)
21M21.00 mi1.00 mi22571-213371+213371+222347(Top 84%)13136(Top 87%)13136(Top 583%)
35K21.75 mi0.75 mi22532+3913352+1913352+1922069(Top 83%)12957(Top 85%)12957(Top 575%)
23M23.00 mi1.25 mi2253213334+1813334+1822445(Top 84%)13131(Top 87%)13131(Top 583%)
24M24.00 mi1.00 mi22563-3113343-913343-923189(Top 87%)13433(Top 89%)13433(Top 596%)
40K24.85 mi0.85 mi22544+1913329+1413329+1422010(Top 83%)12833(Top 85%)12833(Top 570%)
25.2M25.20 mi0.35 mi22541+313321+813321+821944(Top 82%)12821(Top 84%)12821(Top 569%)
Finish26.22 mi1.02 mi22553-1213315+613315+622965(Top 86%)13311(Top 88%)13311(Top 591%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

22229

Males

13288

M45-49

13288

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22407

Males

13350

M45-49

13350

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

22229

Males

13288

M45-49

13288

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

21861

Males

13121

M45-49

13121

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

22167

Males

13277

M45-49

13277

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

24024

Males

14036

M45-49

14036

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

22776

Males

13416

M45-49

13416

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22284

Males

13132

M45-49

13132

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

22347

Males

13136

M45-49

13136

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

22069

Males

12957

M45-49

12957

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

22445

Males

13131

M45-49

13131

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

23189

Males

13433

M45-49

13433

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22010

Males

12833

M45-49

12833

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21944

Males

12821

M45-49

12821

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22965

Males

13311

M45-49

13311

Passing Analysis

Category:
Athletes Passed
993
Passed By
1591
Net Change
-598
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21955
5K → 10K141413-272#21955#22227
10K → 15K180151+29#22227#22198
15K → 20K17686+90#22198#22108
20K → Half2232-10#22108#22118
Half → 25K19467-448#22118#22566
25K → 30K103138-35#22566#22601
30K → 20M7745+32#22601#22569
20M → 21M4850-2#22569#22571
21M → 35K5415+39#22571#22532
35K → 23M59590#22532#22532
23M → 24M2354-31#22532#22563
24M → 40K3415+19#22563#22544
40K → 25.2M2118+3#22544#22541
25.2M → Finish3648-12#22541#22553
TOTALS9931591-598
📊

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