Boston Marathon logo
BOSTON MARATHON 2024

Kristy Perkowski

Bib: 27821•F

ME

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F40-44)
#0 / 1613
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:51/mi
30:37
↑ 97↓ 3451.5%
10K· 6.21 mi
9:46/mi
1:00:58
↑ 79↓ 1380.4%
15K· 9.32 mi
9:46/mi
1:31:20
↑ 67↓ 78
20K· 12.43 mi
9:50/mi
2:01:53
↑ 106↓ 860.1%
Half· 13.11 mi
10:04/mi
2:08:45
↑ 19↓ 370.5%
25K· 15.53 mi
9:58/mi
2:32:56
↑ 66↓ 880.2%
30K· 18.64 mi
10:32/mi
3:05:41
↑ 181↓ 1480.2%
20M
10:57/mi
3:20:34
↑ 64↓ 500.2%
21M
11:28/mi
3:32:02
↑ 106↓ 241.6%
35K· 21.75 mi
10:26/mi
3:39:50
↑ 17↓ 861.7%
23M
10:24/mi
3:52:51
↑ 23↓ 630.6%
24M
11:10/mi
4:04:01
↓ 821.3%
40K· 24.85 mi
10:06/mi
4:12:39
↓ 200.3%
25.2M
11:33/mi
4:16:38
↑ 13↓ 160.2%
Finish· 26.22 mi
9:07/mi
4:25:55
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:45
Pace9:49 /mi
2nd Half
Distance13.11 mi
Time2:17:10
Pace10:28 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3830:379:5130:37
9:51
-
10K
6.21 mi12:19:591:00:589:4930:21
9:46
-0:05
15K
9.32 mi12:50:211:31:209:4830:22
9:46
0:00
20K
12.43 mi13:20:542:01:539:4830:33
9:50
+0:04
Half
13.11 mi13:27:462:08:459:496:52
10:04
+0:14
25K
15.53 mi13:51:572:32:569:5124:11
9:58
-0:06
30K
18.64 mi14:24:423:05:419:5832:45
10:32
+0:34
20M
20.00 mi14:39:353:20:3410:0214:53
10:57
+0:25
21M
21.00 mi14:51:033:32:0210:0611:28
11:28
+0:31
35K
21.75 mi14:58:513:39:5010:067:48
10:26
-1:02
23M
23.00 mi15:11:523:52:5110:0713:01
10:24
-0:02
24M
24.00 mi15:23:024:04:0110:1011:10
11:10
+0:46
40K
24.85 mi15:31:404:12:3910:108:38
10:06
-1:04
25.2M
25.20 mi15:35:394:16:3810:113:59
11:33
+1:27
Finish
26.22 mi15:44:564:25:5510:099:17
9:07
-2:26

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

9:07 /mi

Average Pace

10:09 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

9:17

3% of race

Time at Steady Pace

3:02:23

69% of race

Time at Slower Pace

1:14:15

28% of race

Average Pace: 10:09 /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 mi11:49:3830:379:5130:37
9:51
#22643
10K
6.21 mi12:19:591:00:589:4930:21
9:46
#22352
15K
9.32 mi12:50:211:31:209:4830:22
9:46
#21998
20K
12.43 mi13:20:542:01:539:4830:33
9:50
#21496
Half
13.11 mi13:27:462:08:459:496:52
10:04
#21494
25K
15.53 mi13:51:572:32:569:5124:11
9:58
#21049
30K
18.64 mi14:24:423:05:419:5832:45
10:32
#20660
20M
20.00 mi14:39:353:20:3410:0214:53
10:57
#20537
21M
21.00 mi14:51:033:32:0210:0611:28
11:28
#20372
35K
21.75 mi14:58:513:39:5010:067:48
10:26
#20297
23M
23.00 mi15:11:523:52:5110:0713:01
10:24
#20087
24M
24.00 mi15:23:024:04:0110:1011:10
11:10
#20042
40K
24.85 mi15:31:404:12:3910:108:38
10:06
#19886
25.2M
25.20 mi15:35:394:16:3810:113:59
11:33
#19821
Finish
26.22 mi15:44:564:25:5510:099:17
9:07
#19660
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi226439226922621380(Top 84%)8536(Top 78%)8536(Top 529%)
10K6.21 mi3.10 mi22352+2919085+1419085+14122016(Top 86%)8920(Top 82%)8920(Top 553%)
15K9.32 mi3.11 mi21998+3548895+1908895+19021380(Top 84%)8536(Top 78%)8536(Top 529%)
20K12.43 mi3.11 mi21496+5028635+2608635+26020139(Top 79%)7892(Top 72%)7892(Top 489%)
Half13.11 mi0.68 mi21494+28632+38632+321621(Top 85%)8741(Top 80%)8741(Top 542%)
25K15.53 mi2.42 mi21049+4458402+2308402+23019064(Top 75%)7411(Top 68%)7411(Top 459%)
30K18.64 mi3.11 mi20660+3898235+1678235+16718898(Top 74%)7524(Top 69%)7524(Top 466%)
20M20.00 mi1.36 mi20537+1238214+218214+2119179(Top 75%)7794(Top 71%)7794(Top 483%)
21M21.00 mi1.00 mi20372+1658147+678147+6717593(Top 69%)7137(Top 65%)7137(Top 442%)
35K21.75 mi0.75 mi20297+758128+198128+1918398(Top 72%)7540(Top 69%)7540(Top 467%)
23M23.00 mi1.25 mi20087+2108039+898039+8916747(Top 66%)6781(Top 62%)6781(Top 420%)
24M24.00 mi1.00 mi20042+458031+88031+819675(Top 77%)8283(Top 76%)8283(Top 514%)
40K24.85 mi0.85 mi19886+1567961+707961+7015384(Top 60%)6211(Top 57%)6211(Top 385%)
25.2M25.20 mi0.35 mi19821+657935+267935+2616237(Top 64%)6664(Top 61%)6664(Top 413%)
Finish26.22 mi1.02 mi19660+1617863+727863+7214784(Top 58%)5866(Top 54%)5866(Top 364%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

21380

Females

8536

F40-44

8536

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22016

Females

8920

F40-44

8920

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

21380

Females

8536

F40-44

8536

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20139

Females

7892

F40-44

7892

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

21621

Females

8741

F40-44

8741

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

19064

Females

7411

F40-44

7411

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

18898

Females

7524

F40-44

7524

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19179

Females

7794

F40-44

7794

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

17593

Females

7137

F40-44

7137

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

18398

Females

7540

F40-44

7540

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

16747

Females

6781

F40-44

6781

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

19675

Females

8283

F40-44

8283

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15384

Females

6211

F40-44

6211

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

16237

Females

6664

F40-44

6664

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

14784

Females

5866

F40-44

5866

Passing Analysis

Category:
Athletes Passed
3299
Passed By
316
Net Change
+2983
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22643
5K → 10K37988+291#22643#22352
10K → 15K39743+354#22352#21998
15K → 20K51210+502#21998#21496
20K → Half3634+2#21496#21494
Half → 25K4505+445#21494#21049
25K → 30K40718+389#21049#20660
30K → 20M15229+123#20660#20537
20M → 21M17712+165#20537#20372
21M → 35K9520+75#20372#20297
35K → 23M2133+210#20297#20087
23M → 24M8843+45#20087#20042
24M → 40K1637+156#20042#19886
40K → 25.2M672+65#19886#19821
25.2M → Finish1632+161#19821#19660
TOTALS3299316+2983
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing