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BOSTON MARATHON 2025

Kirsty Michealsen

Bib: 12604•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 43%
Gender (Female)
#0 / 12228
Top 28%
Masters (Masters Women)
#0 / 6759
Top 13%
Division (F40-44)
#0 / 1718
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:29
Rank: #12749
Start → 5K
23:29 | 7:34/mi
10K· 6.21 mi
47:06
Rank: #12844 (-95)
5K → 10K
23:37 | 7:36/mi
15K· 9.32 mi
1:10:50
Rank: #12869 (-25)
10K → 15K
23:44 | 7:38/mi
20K· 12.43 mi
1:34:40
Rank: #12642 (+227)
15K → 20K
23:50 | 7:40/mi
Half· 13.11 mi
1:39:51
Rank: #12640 (+2)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
1:58:42
Rank: #12533 (+107)
Half → 25K
18:51 | 7:46/mi
30K· 18.64 mi
2:24:11
Rank: #12541 (-8)
25K → 30K
25:29 | 8:12/mi
20M
2:35:33
Rank: #12541
30K → 20M
11:22 | 8:22/mi
21M
2:44:11
Rank: #12444 (+97)
20M → 21M
8:38 | 8:38/mi
35K· 21.75 mi
2:50:25
Rank: #12511 (-67)
21M → 35K
6:14 | 8:20/mi
23M
3:00:51
Rank: #12470 (+41)
35K → 23M
10:26 | 8:20/mi
24M
3:09:09
Rank: #12487 (-17)
23M → 24M
8:18 | 8:18/mi
40K· 24.85 mi
3:16:18
Rank: #12461 (+26)
24M → 40K
7:09 | 8:22/mi
25.2M
3:19:20
Rank: #12423 (+38)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:27:10
Rank: #12322 (+101)
25.2M → Finish
7:50 | 7:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:51
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:47:19
Pace8:11 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4823:297:3423:29
7:34
-
10K
6.21 mi11:14:2547:067:3523:37
7:36
+0:02
15K
9.32 mi11:38:091:10:507:3623:44
7:38
+0:02
20K
12.43 mi12:01:591:34:407:3723:50
7:40
+0:02
Half
13.11 mi12:07:101:39:517:375:11
7:36
-0:04
25K
15.53 mi12:26:011:58:427:3818:51
7:46
+0:10
30K
18.64 mi12:51:302:24:117:4425:29
8:12
+0:26
20M
20.00 mi13:02:522:35:337:4711:22
8:22
+0:10
21M
21.00 mi13:11:302:44:117:498:38
8:38
+0:16
35K
21.75 mi13:17:442:50:257:506:14
8:20
-0:18
23M
23.00 mi13:28:103:00:517:5210:26
8:20
0:00
24M
24.00 mi13:36:283:09:097:538:18
8:18
-0:02
40K
24.85 mi13:43:373:16:187:547:09
8:22
+0:04
25.2M
25.20 mi13:46:393:19:207:553:02
8:48
+0:26
Finish
26.22 mi13:54:293:27:107:547:50
7:41
-1:07

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

7:34 /mi

Average Pace

7:54 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:19

77% of race

Time at Steady Pace

46:51

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:54 /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 mi10:50:4823:297:3423:29
7:34
#12749
10K
6.21 mi11:14:2547:067:3523:37
7:36
#12844
15K
9.32 mi11:38:091:10:507:3623:44
7:38
#12869
20K
12.43 mi12:01:591:34:407:3723:50
7:40
#12642
Half
13.11 mi12:07:101:39:517:375:11
7:36
#12640
25K
15.53 mi12:26:011:58:427:3818:51
7:46
#12533
30K
18.64 mi12:51:302:24:117:4425:29
8:12
#12541
20M
20.00 mi13:02:522:35:337:4711:22
8:22
#12541
21M
21.00 mi13:11:302:44:117:498:38
8:38
#12444
35K
21.75 mi13:17:442:50:257:506:14
8:20
#12511
23M
23.00 mi13:28:103:00:517:5210:26
8:20
#12470
24M
24.00 mi13:36:283:09:097:538:18
8:18
#12487
40K
24.85 mi13:43:373:16:187:547:09
8:22
#12461
25.2M
25.20 mi13:46:393:19:207:553:02
8:48
#12423
Finish
26.22 mi13:54:293:27:107:547:50
7:41
#12322
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi127493190319012961(Top 46%)3425(Top 28%)3425(Top 199%)
10K6.21 mi3.10 mi12844-953256-663256-6613052(Top 46%)3398(Top 28%)3398(Top 198%)
15K9.32 mi3.11 mi12869-253310-543310-5412961(Top 46%)3425(Top 28%)3425(Top 199%)
20K12.43 mi3.11 mi12642+2273230+803230+8012162(Top 43%)3086(Top 25%)3086(Top 180%)
Half13.11 mi0.68 mi12640+23236-63236-612606(Top 44%)3290(Top 27%)3290(Top 192%)
25K15.53 mi2.42 mi12533+1073211+253211+2512160(Top 43%)3202(Top 26%)3202(Top 186%)
30K18.64 mi3.11 mi12541-83292-813292-8112846(Top 45%)3743(Top 31%)3743(Top 218%)
20M20.00 mi1.36 mi125413330-383330-3812937(Top 46%)3935(Top 32%)3935(Top 229%)
21M21.00 mi1.00 mi12444+973311+193311+1911308(Top 40%)3250(Top 27%)3250(Top 189%)
35K21.75 mi0.75 mi12511-673369-583369-5814487(Top 51%)4941(Top 40%)4941(Top 288%)
23M23.00 mi1.25 mi12470+413388-193388-1912252(Top 43%)3877(Top 32%)3877(Top 226%)
24M24.00 mi1.00 mi12487-173414-263414-2613275(Top 47%)4450(Top 36%)4450(Top 259%)
40K24.85 mi0.85 mi12461+263437-233437-2312562(Top 44%)4215(Top 34%)4215(Top 245%)
25.2M25.20 mi0.35 mi12423+383430+73430+710674(Top 38%)3330(Top 27%)3330(Top 194%)
Finish26.22 mi1.02 mi12322+1013420+103420+1010646(Top 37%)3291(Top 27%)3291(Top 192%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12961

Females

3425

F40-44

3425

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

13052

Females

3398

F40-44

3398

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12961

Females

3425

F40-44

3425

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

12162

Females

3086

F40-44

3086

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

12606

Females

3290

F40-44

3290

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

12160

Females

3202

F40-44

3202

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12846

Females

3743

F40-44

3743

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12937

Females

3935

F40-44

3935

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

11308

Females

3250

F40-44

3250

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14487

Females

4941

F40-44

4941

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

12252

Females

3877

F40-44

3877

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13275

Females

4450

F40-44

4450

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12562

Females

4215

F40-44

4215

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10674

Females

3330

F40-44

3330

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

10646

Females

3291

F40-44

3291

Passing Analysis

Category:
Athletes Passed
2011
Passed By
1584
Net Change
+427
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12749
5K → 10K242337-95#12749#12844
10K → 15K194219-25#12844#12869
15K → 20K31285+227#12869#12642
20K → Half3836+2#12642#12640
Half → 25K19790+107#12640#12533
25K → 30K243251-8#12533#12541
30K → 20M1061060#12541#12541
20M → 21M15558+97#12541#12444
21M → 35K50117-67#12444#12511
35K → 23M12988+41#12511#12470
23M → 24M7289-17#12470#12487
24M → 40K8559+26#12487#12461
40K → 25.2M5517+38#12461#12423
25.2M → Finish13332+101#12423#12322
TOTALS20111584+427
📊

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