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BOSTON MARATHON 2023

Kirsty Michealsen

Bib: 18501•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 30%
Division (F18-39)
#0 / 4884
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:50
Rank: #13979
Start → 5K
24:50 | 8:00/mi
10K· 6.21 mi
49:42
Rank: #14379 (-400)
5K → 10K
24:52 | 8:00/mi
15K· 9.32 mi
1:14:35
Rank: #14368 (+11)
10K → 15K
24:53 | 8:01/mi
20K· 12.43 mi
1:39:38
Rank: #14236 (+132)
15K → 20K
25:03 | 8:04/mi
Half· 13.11 mi
1:45:08
Rank: #14261 (-25)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:04:52
Rank: #14182 (+79)
Half → 25K
19:44 | 8:08/mi
30K· 18.64 mi
2:30:34
Rank: #13913 (+269)
25K → 30K
25:42 | 8:16/mi
20M
2:41:46
Rank: #13734 (+179)
30K → 20M
11:12 | 8:15/mi
21M
2:50:08
Rank: #13463 (+271)
20M → 21M
8:22 | 8:22/mi
35K· 21.75 mi
2:56:05
Rank: #13378 (+85)
21M → 35K
5:57 | 7:57/mi
23M
3:05:58
Rank: #13086 (+292)
35K → 23M
9:53 | 7:54/mi
24M
3:13:44
Rank: #12927 (+159)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
3:20:28
Rank: #12781 (+146)
24M → 40K
6:44 | 7:53/mi
25.2M
3:23:17
Rank: #12688 (+93)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:30:48
Rank: #12473 (+215)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:45:08
Pace8:01 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:45:40
Pace8:04 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5824:508:0024:50
8:00
-
10K
6.21 mi11:40:5049:428:0024:52
8:00
0:00
15K
9.32 mi12:05:431:14:358:0024:53
8:01
+0:01
20K
12.43 mi12:30:461:39:388:0125:03
8:04
+0:03
Half
13.11 mi12:36:161:45:088:015:30
8:04
0:00
25K
15.53 mi12:56:002:04:528:0219:44
8:08
+0:04
30K
18.64 mi13:21:422:30:348:0525:42
8:16
+0:08
20M
20.00 mi13:32:542:41:468:0511:12
8:15
-0:01
21M
21.00 mi13:41:162:50:088:068:22
8:22
+0:07
35K
21.75 mi13:47:132:56:058:065:57
7:57
-0:25
23M
23.00 mi13:57:063:05:588:059:53
7:54
-0:03
24M
24.00 mi14:04:523:13:448:047:46
7:46
-0:08
40K
24.85 mi14:11:363:20:288:046:44
7:53
+0:07
25.2M
25.20 mi14:14:253:23:178:042:49
8:10
+0:17
Finish
26.22 mi14:21:563:30:488:037:31
7:23
-0:47

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

7:23 /mi

Average Pace

8:03 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:59

68% of race

Time at Steady Pace

1:07:49

32% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:02 /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 mi11:15:5824:508:0024:50
8:00
#13979
10K
6.21 mi11:40:5049:428:0024:52
8:00
#14379
15K
9.32 mi12:05:431:14:358:0024:53
8:01
#14368
20K
12.43 mi12:30:461:39:388:0125:03
8:04
#14236
Half
13.11 mi12:36:161:45:088:015:30
8:04
#14261
25K
15.53 mi12:56:002:04:528:0219:44
8:08
#14182
30K
18.64 mi13:21:422:30:348:0525:42
8:16
#13913
20M
20.00 mi13:32:542:41:468:0511:12
8:15
#13734
21M
21.00 mi13:41:162:50:088:068:22
8:22
#13463
35K
21.75 mi13:47:132:56:058:065:57
7:57
#13378
23M
23.00 mi13:57:063:05:588:059:53
7:54
#13086
24M
24.00 mi14:04:523:13:448:047:46
7:46
#12927
40K
24.85 mi14:11:363:20:288:046:44
7:53
#12781
25.2M
25.20 mi14:14:253:23:178:042:49
8:10
#12688
Finish
26.22 mi14:21:563:30:488:037:31
7:23
#12473
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi139794017401714460(Top 54%)4352(Top 38%)4352(Top 89%)
10K6.21 mi3.10 mi14379-4004270-2534270-25314835(Top 56%)4568(Top 40%)4568(Top 94%)
15K9.32 mi3.11 mi14368+114275-54275-514460(Top 54%)4352(Top 38%)4352(Top 89%)
20K12.43 mi3.11 mi14236+1324220+554220+5513949(Top 52%)4076(Top 36%)4076(Top 83%)
Half13.11 mi0.68 mi14261-254235-154235-1514849(Top 56%)4569(Top 40%)4569(Top 94%)
25K15.53 mi2.42 mi14182+794216+194216+1913798(Top 52%)4091(Top 36%)4091(Top 84%)
30K18.64 mi3.11 mi13913+2694088+1284088+12812851(Top 48%)3665(Top 32%)3665(Top 75%)
20M20.00 mi1.36 mi13734+1793997+913997+9111978(Top 45%)3264(Top 29%)3264(Top 67%)
21M21.00 mi1.00 mi13463+2713851+1463851+1469689(Top 36%)2245(Top 20%)2245(Top 46%)
35K21.75 mi0.75 mi13378+853816+353816+3511825(Top 44%)3332(Top 29%)3332(Top 68%)
23M23.00 mi1.25 mi13086+2923672+1443672+1449087(Top 34%)2089(Top 18%)2089(Top 43%)
24M24.00 mi1.00 mi12927+1593602+703602+709593(Top 36%)2403(Top 21%)2403(Top 49%)
40K24.85 mi0.85 mi12781+1463538+643538+649227(Top 35%)2289(Top 20%)2289(Top 47%)
25.2M25.20 mi0.35 mi12688+933493+453493+457627(Top 29%)1697(Top 15%)1697(Top 35%)
Finish26.22 mi1.02 mi12473+2153392+1013392+1017670(Top 29%)1699(Top 15%)1699(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14460

Females

4352

F18-39

4352

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14835

Females

4568

F18-39

4568

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14460

Females

4352

F18-39

4352

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13949

Females

4076

F18-39

4076

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14849

Females

4569

F18-39

4569

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

13798

Females

4091

F18-39

4091

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

12851

Females

3665

F18-39

3665

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11978

Females

3264

F18-39

3264

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9689

Females

2245

F18-39

2245

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11825

Females

3332

F18-39

3332

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9087

Females

2089

F18-39

2089

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

9593

Females

2403

F18-39

2403

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9227

Females

2289

F18-39

2289

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7627

Females

1697

F18-39

1697

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7670

Females

1699

F18-39

1699

Passing Analysis

Category:
Athletes Passed
2590
Passed By
1084
Net Change
+1506
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13979
5K → 10K131531-400#13979#14379
10K → 15K191180+11#14379#14368
15K → 20K233101+132#14368#14236
20K → Half2247-25#14236#14261
Half → 25K17394+79#14261#14182
25K → 30K34172+269#14182#13913
30K → 20M19617+179#13913#13734
20M → 21M2721+271#13734#13463
21M → 35K9914+85#13463#13378
35K → 23M3008+292#13378#13086
23M → 24M1645+159#13086#12927
24M → 40K1559+146#12927#12781
40K → 25.2M941+93#12781#12688
25.2M → Finish2194+215#12688#12473
TOTALS25901084+1506
📊

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