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BOSTON MARATHON 2023

Erik Bjornstad

Bib: 5427•M

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 34%
Masters (Masters Men)
#0 / 9891
Top 20%
Division (M40-44)
#0 / 2241
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:07
Rank: #6975
Start → 5K
22:07 | 7:07/mi
10K· 6.21 mi
44:06
Rank: #7080 (-105)
5K → 10K
21:59 | 7:05/mi
15K· 9.32 mi
1:06:07
Rank: #7058 (+22)
10K → 15K
22:01 | 7:05/mi
20K· 12.43 mi
1:28:04
Rank: #6846 (+212)
15K → 20K
21:57 | 7:04/mi
Half· 13.11 mi
1:32:48
Rank: #6814 (+32)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:49:58
Rank: #6657 (+157)
Half → 25K
17:10 | 7:05/mi
30K· 18.64 mi
2:12:12
Rank: #6353 (+304)
25K → 30K
22:14 | 7:09/mi
20M
2:22:03
Rank: #6240 (+113)
30K → 20M
9:51 | 7:15/mi
21M
2:29:38
Rank: #6136 (+104)
20M → 21M
7:35 | 7:35/mi
35K· 21.75 mi
2:34:55
Rank: #6101 (+35)
21M → 35K
5:17 | 7:04/mi
23M
2:44:02
Rank: #5989 (+112)
35K → 23M
9:07 | 7:17/mi
24M
2:51:05
Rank: #5896 (+93)
23M → 24M
7:03 | 7:03/mi
40K· 24.85 mi
2:57:10
Rank: #5797 (+99)
24M → 40K
6:05 | 7:07/mi
25.2M
2:59:45
Rank: #5744 (+53)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:06:50
Rank: #5658 (+86)
25.2M → Finish
7:05 | 6:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:48
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:34:02
Pace7:10 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5122:077:0722:07
7:07
-
10K
6.21 mi10:46:5044:067:0621:59
7:05
-0:02
15K
9.32 mi11:08:511:06:077:0622:01
7:05
0:00
20K
12.43 mi11:30:481:28:047:0521:57
7:04
-0:01
Half
13.11 mi11:35:321:32:487:054:44
6:56
-0:08
25K
15.53 mi11:52:421:49:587:0517:10
7:05
+0:09
30K
18.64 mi12:14:562:12:127:0622:14
7:09
+0:04
20M
20.00 mi12:24:472:22:037:069:51
7:15
+0:06
21M
21.00 mi12:32:222:29:387:087:35
7:35
+0:20
35K
21.75 mi12:37:392:34:557:075:17
7:04
-0:31
23M
23.00 mi12:46:462:44:027:089:07
7:17
+0:13
24M
24.00 mi12:53:492:51:057:087:03
7:03
-0:14
40K
24.85 mi12:59:542:57:107:086:05
7:07
+0:04
25.2M
25.20 mi13:02:292:59:457:082:35
7:29
+0:22
Finish
26.22 mi13:09:343:06:507:087:05
6:57
-0:32

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

6:56 /mi

Average Pace

7:08 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:33

90% of race

Time at Steady Pace

19:17

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:08 /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 mi10:24:5122:077:0722:07
7:07
#6975
10K
6.21 mi10:46:5044:067:0621:59
7:05
#7080
15K
9.32 mi11:08:511:06:077:0622:01
7:05
#7058
20K
12.43 mi11:30:481:28:047:0521:57
7:04
#6846
Half
13.11 mi11:35:321:32:487:054:44
6:56
#6814
25K
15.53 mi11:52:421:49:587:0517:10
7:05
#6657
30K
18.64 mi12:14:562:12:127:0622:14
7:09
#6353
20M
20.00 mi12:24:472:22:037:069:51
7:15
#6240
21M
21.00 mi12:32:222:29:387:087:35
7:35
#6136
35K
21.75 mi12:37:392:34:557:075:17
7:04
#6101
23M
23.00 mi12:46:462:44:027:089:07
7:17
#5989
24M
24.00 mi12:53:492:51:057:087:03
7:03
#5896
40K
24.85 mi12:59:542:57:107:086:05
7:07
#5797
25.2M
25.20 mi13:02:292:59:457:082:35
7:29
#5744
Finish
26.22 mi13:09:343:06:507:087:05
6:57
#5658
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6975625062507059(Top 27%)6284(Top 41%)6284(Top 280%)
10K6.21 mi3.10 mi7080-1056315-656315-657268(Top 27%)6424(Top 42%)6424(Top 287%)
15K9.32 mi3.11 mi7058+226293+226293+227059(Top 27%)6284(Top 41%)6284(Top 280%)
20K12.43 mi3.11 mi6846+2126136+1576136+1576360(Top 24%)5742(Top 38%)5742(Top 256%)
Half13.11 mi0.68 mi6814+326109+276109+276179(Top 23%)5622(Top 37%)5622(Top 251%)
25K15.53 mi2.42 mi6657+1575972+1375972+1376010(Top 23%)5449(Top 36%)5449(Top 243%)
30K18.64 mi3.11 mi6353+3045734+2385734+2385253(Top 20%)4799(Top 32%)4799(Top 214%)
20M20.00 mi1.36 mi6240+1135635+995635+995367(Top 20%)4829(Top 32%)4829(Top 215%)
21M21.00 mi1.00 mi6136+1045545+905545+905002(Top 19%)4480(Top 30%)4480(Top 200%)
35K21.75 mi0.75 mi6101+355512+335512+335670(Top 21%)5001(Top 33%)5001(Top 223%)
23M23.00 mi1.25 mi5989+1125410+1025410+1025210(Top 20%)4618(Top 30%)4618(Top 206%)
24M24.00 mi1.00 mi5896+935327+835327+834910(Top 18%)4362(Top 29%)4362(Top 195%)
40K24.85 mi0.85 mi5797+995243+845243+844452(Top 17%)3953(Top 26%)3953(Top 176%)
25.2M25.20 mi0.35 mi5744+535194+495194+493886(Top 15%)3476(Top 23%)3476(Top 155%)
Finish26.22 mi1.02 mi5658+865119+755119+754920(Top 18%)4217(Top 28%)4217(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7059

Males

6284

M40-44

6284

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7268

Males

6424

M40-44

6424

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7059

Males

6284

M40-44

6284

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6360

Males

5742

M40-44

5742

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6179

Males

5622

M40-44

5622

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6010

Males

5449

M40-44

5449

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5253

Males

4799

M40-44

4799

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5367

Males

4829

M40-44

4829

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5002

Males

4480

M40-44

4480

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5670

Males

5001

M40-44

5001

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5210

Males

4618

M40-44

4618

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4910

Males

4362

M40-44

4362

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4452

Males

3953

M40-44

3953

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3886

Males

3476

M40-44

3476

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4920

Males

4217

M40-44

4217

Passing Analysis

Category:
Athletes Passed
1847
Passed By
530
Net Change
+1317
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6975
5K → 10K155260-105#6975#7080
10K → 15K150128+22#7080#7058
15K → 20K23220+212#7058#6846
20K → Half386+32#6846#6814
Half → 25K17215+157#6814#6657
25K → 30K3106+304#6657#6353
30K → 20M12310+113#6353#6240
20M → 21M11713+104#6240#6136
21M → 35K5217+35#6136#6101
35K → 23M12715+112#6101#5989
23M → 24M10512+93#5989#5896
24M → 40K1045+99#5896#5797
40K → 25.2M552+53#5797#5744
25.2M → Finish10721+86#5744#5658
TOTALS1847530+1317
📊

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