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BOSTON MARATHON 2023

Kirsten Slagle

Bib: 14883•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 13%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F40-44)
#0 / 1878
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:35
Rank: #10460
Start → 5K
23:35 | 7:35/mi
10K· 6.21 mi
46:56
Rank: #10505 (-45)
5K → 10K
23:21 | 7:31/mi
15K· 9.32 mi
1:10:17
Rank: #10425 (+80)
10K → 15K
23:21 | 7:31/mi
20K· 12.43 mi
1:33:42
Rank: #10189 (+236)
15K → 20K
23:25 | 7:32/mi
Half· 13.11 mi
1:38:44
Rank: #10120 (+69)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:56:58
Rank: #9886 (+234)
Half → 25K
18:14 | 7:31/mi
30K· 18.64 mi
2:20:46
Rank: #9600 (+286)
25K → 30K
23:48 | 7:40/mi
20M
2:31:12
Rank: #9444 (+156)
30K → 20M
10:26 | 7:41/mi
21M
2:39:16
Rank: #9301 (+143)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:44:50
Rank: #9238 (+63)
21M → 35K
5:34 | 7:26/mi
23M
2:54:28
Rank: #9123 (+115)
35K → 23M
9:38 | 7:42/mi
24M
3:01:51
Rank: #8997 (+126)
23M → 24M
7:23 | 7:23/mi
40K· 24.85 mi
3:08:17
Rank: #8894 (+103)
24M → 40K
6:26 | 7:31/mi
25.2M
3:11:06
Rank: #8851 (+43)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:18:25
Rank: #8723 (+128)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:44
Pace7:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:41
Pace7:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0223:357:3523:35
7:35
-
10K
6.21 mi11:16:2346:567:3323:21
7:31
-0:04
15K
9.32 mi11:39:441:10:177:3223:21
7:31
0:00
20K
12.43 mi12:03:091:33:427:3223:25
7:32
+0:01
Half
13.11 mi12:08:111:38:447:325:02
7:23
-0:09
25K
15.53 mi12:26:251:56:587:3218:14
7:31
+0:08
30K
18.64 mi12:50:132:20:467:3323:48
7:40
+0:09
20M
20.00 mi13:00:392:31:127:3410:26
7:41
+0:01
21M
21.00 mi13:08:432:39:167:358:04
8:04
+0:23
35K
21.75 mi13:14:172:44:507:355:34
7:26
-0:38
23M
23.00 mi13:23:552:54:287:359:38
7:42
+0:16
24M
24.00 mi13:31:183:01:517:357:23
7:23
-0:19
40K
24.85 mi13:37:443:08:177:356:26
7:31
+0:08
25.2M
25.20 mi13:40:333:11:067:352:49
8:10
+0:39
Finish
26.22 mi13:47:523:18:257:347:19
7:11
-0:59

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

7:11 /mi

Average Pace

7:34 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:32

95% of race

Time at Steady Pace

10:53

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:53:0223:357:3523:35
7:35
#10460
10K
6.21 mi11:16:2346:567:3323:21
7:31
#10505
15K
9.32 mi11:39:441:10:177:3223:21
7:31
#10425
20K
12.43 mi12:03:091:33:427:3223:25
7:32
#10189
Half
13.11 mi12:08:111:38:447:325:02
7:23
#10120
25K
15.53 mi12:26:251:56:587:3218:14
7:31
#9886
30K
18.64 mi12:50:132:20:467:3323:48
7:40
#9600
20M
20.00 mi13:00:392:31:127:3410:26
7:41
#9444
21M
21.00 mi13:08:432:39:167:358:04
8:04
#9301
35K
21.75 mi13:14:172:44:507:355:34
7:26
#9238
23M
23.00 mi13:23:552:54:287:359:38
7:42
#9123
24M
24.00 mi13:31:183:01:517:357:23
7:23
#8997
40K
24.85 mi13:37:443:08:177:356:26
7:31
#8894
25.2M
25.20 mi13:40:333:11:067:352:49
8:10
#8851
Finish
26.22 mi13:47:523:18:257:347:19
7:11
#8723
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi104602065206510310(Top 39%)1982(Top 17%)1982(Top 106%)
10K6.21 mi3.10 mi10505-452073-82073-810573(Top 40%)2088(Top 18%)2088(Top 111%)
15K9.32 mi3.11 mi10425+802023+502023+5010310(Top 39%)1982(Top 17%)1982(Top 106%)
20K12.43 mi3.11 mi10189+2361919+1041919+1049625(Top 36%)1743(Top 15%)1743(Top 93%)
Half13.11 mi0.68 mi10120+691893+261893+269299(Top 35%)1591(Top 14%)1591(Top 85%)
25K15.53 mi2.42 mi9886+2341803+901803+908934(Top 34%)1534(Top 13%)1534(Top 82%)
30K18.64 mi3.11 mi9600+2861716+871716+878380(Top 31%)1460(Top 13%)1460(Top 78%)
20M20.00 mi1.36 mi9444+1561684+321684+328048(Top 30%)1423(Top 12%)1423(Top 76%)
21M21.00 mi1.00 mi9301+1431655+291655+297818(Top 29%)1433(Top 13%)1433(Top 76%)
35K21.75 mi0.75 mi9238+631645+101645+108137(Top 31%)1555(Top 14%)1555(Top 83%)
23M23.00 mi1.25 mi9123+1151626+191626+197708(Top 29%)1456(Top 13%)1456(Top 78%)
24M24.00 mi1.00 mi8997+1261595+311595+316976(Top 26%)1271(Top 11%)1271(Top 68%)
40K24.85 mi0.85 mi8894+1031578+171578+176888(Top 26%)1319(Top 12%)1319(Top 70%)
25.2M25.20 mi0.35 mi8851+431568+101568+107558(Top 28%)1628(Top 14%)1628(Top 87%)
Finish26.22 mi1.02 mi8723+1281540+281540+286315(Top 24%)1172(Top 10%)1172(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10310

Females

1982

F40-44

1982

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10573

Females

2088

F40-44

2088

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10310

Females

1982

F40-44

1982

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

9625

Females

1743

F40-44

1743

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9299

Females

1591

F40-44

1591

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

8934

Females

1534

F40-44

1534

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8380

Females

1460

F40-44

1460

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8048

Females

1423

F40-44

1423

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7818

Females

1433

F40-44

1433

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8137

Females

1555

F40-44

1555

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7708

Females

1456

F40-44

1456

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

6976

Females

1271

F40-44

1271

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6888

Females

1319

F40-44

1319

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7558

Females

1628

F40-44

1628

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6315

Females

1172

F40-44

1172

Passing Analysis

Category:
Athletes Passed
2447*
Passed By
710
Net Change
+1737
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10460
5K → 10K260*305-45#10460#10505
10K → 15K246166+80#10505#10425
15K → 20K279*43+236#10425#10189
20K → Half778+69#10189#10120
Half → 25K261*27+234#10120#9886
25K → 30K323*37+286#9886#9600
30K → 20M17822+156#9600#9444
20M → 21M16320+143#9444#9301
21M → 35K8219+63#9301#9238
35K → 23M14429+115#9238#9123
23M → 24M1348+126#9123#8997
24M → 40K1129+103#8997#8894
40K → 25.2M507+43#8894#8851
25.2M → Finish13810+128#8851#8723
TOTALS2447*710+1737

* 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