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BOSTON MARATHON 2023

Jen Olson

Bib: 20349•F

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 15%
Masters (Masters Women)
#0 / 6539
Top 6%
Division (F40-44)
#0 / 1878
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:21
Rank: #15143
Start → 5K
25:21 | 8:10/mi
10K· 6.21 mi
49:45
Rank: #14433 (+710)
5K → 10K
24:24 | 7:51/mi
15K· 9.32 mi
1:13:44
Rank: #13663 (+770)
10K → 15K
23:59 | 7:43/mi
20K· 12.43 mi
1:37:45
Rank: #13001 (+662)
15K → 20K
24:01 | 7:44/mi
Half· 13.11 mi
1:42:58
Rank: #12909 (+92)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
2:01:20
Rank: #12270 (+639)
Half → 25K
18:22 | 7:35/mi
30K· 18.64 mi
2:25:11
Rank: #11508 (+762)
25K → 30K
23:51 | 7:41/mi
20M
2:35:29
Rank: #11131 (+377)
30K → 20M
10:18 | 7:35/mi
21M
2:43:14
Rank: #10798 (+333)
20M → 21M
7:45 | 7:45/mi
35K· 21.75 mi
2:48:32
Rank: #10567 (+231)
21M → 35K
5:18 | 7:05/mi
23M
2:57:40
Rank: #10219 (+348)
35K → 23M
9:08 | 7:18/mi
24M
3:04:36
Rank: #9869 (+350)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
3:10:36
Rank: #9572 (+297)
24M → 40K
6:00 | 7:01/mi
25.2M
3:13:10
Rank: #9447 (+125)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
3:19:51
Rank: #9153 (+294)
25.2M → Finish
6:41 | 6:34/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:58
Pace7:51 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:53
Pace7:23 /mi
📊Negative Split: 5.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4625:218:1025:21
8:10
-
10K
6.21 mi11:42:1049:458:0024:24
7:51
-0:19
15K
9.32 mi12:06:091:13:447:5523:59
7:43
-0:08
20K
12.43 mi12:30:101:37:457:5224:01
7:44
+0:01
Half
13.11 mi12:35:231:42:587:515:13
7:39
-0:05
25K
15.53 mi12:53:452:01:207:4918:22
7:35
-0:04
30K
18.64 mi13:17:362:25:117:4723:51
7:41
+0:06
20M
20.00 mi13:27:542:35:297:4610:18
7:35
-0:06
21M
21.00 mi13:35:392:43:147:467:45
7:45
+0:10
35K
21.75 mi13:40:572:48:327:455:18
7:05
-0:40
23M
23.00 mi13:50:052:57:407:439:08
7:18
+0:13
24M
24.00 mi13:57:013:04:367:426:56
6:56
-0:22
40K
24.85 mi14:03:013:10:367:406:00
7:01
+0:05
25.2M
25.20 mi14:05:353:13:107:402:34
7:27
+0:26
Finish
26.22 mi14:12:163:19:517:386:41
6:34
-0:53

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

6:34 /mi

Average Pace

7:38 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:03

17% of race

Time at Steady Pace

1:56:03

58% of race

Time at Slower Pace

49:45

25% of race

Average Pace: 7:37 /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 mi11:17:4625:218:1025:21
8:10
#15143
10K
6.21 mi11:42:1049:458:0024:24
7:51
#14433
15K
9.32 mi12:06:091:13:447:5523:59
7:43
#13663
20K
12.43 mi12:30:101:37:457:5224:01
7:44
#13001
Half
13.11 mi12:35:231:42:587:515:13
7:39
#12909
25K
15.53 mi12:53:452:01:207:4918:22
7:35
#12270
30K
18.64 mi13:17:362:25:117:4723:51
7:41
#11508
20M
20.00 mi13:27:542:35:297:4610:18
7:35
#11131
21M
21.00 mi13:35:392:43:147:467:45
7:45
#10798
35K
21.75 mi13:40:572:48:327:455:18
7:05
#10567
23M
23.00 mi13:50:052:57:407:439:08
7:18
#10219
24M
24.00 mi13:57:013:04:367:426:56
6:56
#9869
40K
24.85 mi14:03:013:10:367:406:00
7:01
#9572
25.2M
25.20 mi14:05:353:13:107:402:34
7:27
#9447
Finish
26.22 mi14:12:163:19:517:386:41
6:34
#9153
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi151434733473312012(Top 45%)2902(Top 25%)2902(Top 155%)
10K6.21 mi3.10 mi14433+7104300+4334300+43313593(Top 51%)3782(Top 33%)3782(Top 201%)
15K9.32 mi3.11 mi13663+7703859+4413859+44112012(Top 45%)2902(Top 25%)2902(Top 155%)
20K12.43 mi3.11 mi13001+6623486+3733486+37311144(Top 42%)2477(Top 22%)2477(Top 132%)
Half13.11 mi0.68 mi12909+923429+573429+5711414(Top 43%)2555(Top 22%)2555(Top 136%)
25K15.53 mi2.42 mi12270+6393097+3323097+3329362(Top 35%)1711(Top 15%)1711(Top 91%)
30K18.64 mi3.11 mi11508+7622690+4072690+4078496(Top 32%)1507(Top 13%)1507(Top 80%)
20M20.00 mi1.36 mi11131+3772504+1862504+1867389(Top 28%)1182(Top 10%)1182(Top 63%)
21M21.00 mi1.00 mi10798+3332354+1502354+1505945(Top 22%)794(Top 7%)794(Top 42%)
35K21.75 mi0.75 mi10567+2312258+962258+965878(Top 22%)741(Top 6%)741(Top 39%)
23M23.00 mi1.25 mi10219+3482105+1532105+1535313(Top 20%)621(Top 5%)621(Top 33%)
24M24.00 mi1.00 mi9869+3501967+1381967+1384380(Top 16%)422(Top 4%)422(Top 22%)
40K24.85 mi0.85 mi9572+2971856+1111856+1113976(Top 15%)414(Top 4%)414(Top 22%)
25.2M25.20 mi0.35 mi9447+1251818+381818+383723(Top 14%)401(Top 4%)401(Top 21%)
Finish26.22 mi1.02 mi9153+2941716+1021716+1022808(Top 11%)257(Top 2%)257(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

12012

Females

2902

F40-44

2902

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13593

Females

3782

F40-44

3782

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

12012

Females

2902

F40-44

2902

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11144

Females

2477

F40-44

2477

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11414

Females

2555

F40-44

2555

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9362

Females

1711

F40-44

1711

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8496

Females

1507

F40-44

1507

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7389

Females

1182

F40-44

1182

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5945

Females

794

F40-44

794

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

5878

Females

741

F40-44

741

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5313

Females

621

F40-44

621

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4380

Females

422

F40-44

422

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3976

Females

414

F40-44

414

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3723

Females

401

F40-44

401

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

2808

Females

257

F40-44

257

Passing Analysis

Category:
Athletes Passed
6098*
Passed By
108
Net Change
+5990
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15143
5K → 10K78373+710#15143#14433
10K → 15K78515+770#14433#13663
15K → 20K67210+662#13663#13001
20K → Half975+92#13001#12909
Half → 25K6401+639#12909#12270
25K → 30K7631+762#12270#11508
30K → 20M3781+377#11508#11131
20M → 21M3330+333#11131#10798
21M → 35K2310+231#10798#10567
35K → 23M3491+348#10567#10219
23M → 24M350*0+350#10219#9869
24M → 40K297*0+297#9869#9572
40K → 25.2M1250+125#9572#9447
25.2M → Finish2951+294#9447#9153
TOTALS6098*108+5990

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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