Boston Marathon logo
BOSTON MARATHON 2024

Kelly Kelso

Bib: 12480•F

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 37%
Gender (Female)
#0 / 10924
Top 22%
Masters (Masters Women)
#0 / 6263
Top 10%
Division (F40-44)
#0 / 1613
Top 22%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:32
Rank: #8836
Start → 5K
22:32 | 7:15/mi
10K· 6.21 mi
45:08
Rank: #8629 (+207)
5K → 10K
22:36 | 7:16/mi
15K· 9.32 mi
1:08:02
Rank: #8609 (+20)
10K → 15K
22:54 | 7:22/mi
20K· 12.43 mi
1:31:29
Rank: #8578 (+31)
15K → 20K
23:27 | 7:33/mi
Half· 13.11 mi
1:36:40
Rank: #8633 (-55)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
1:55:35
Rank: #8648 (-15)
Half → 25K
18:55 | 7:48/mi
30K· 18.64 mi
2:21:56
Rank: #8963 (-315)
25K → 30K
26:21 | 8:29/mi
20M
2:33:59
Rank: #9087 (-124)
30K → 20M
12:03 | 8:52/mi
21M
2:44:14
Rank: #9373 (-286)
20M → 21M
10:15 | 10:15/mi
35K· 21.75 mi
2:50:16
Rank: #9289 (+84)
21M → 35K
6:02 | 8:04/mi
23M
3:01:05
Rank: #9209 (+80)
35K → 23M
10:49 | 8:38/mi
24M
3:09:46
Rank: #9265 (-56)
23M → 24M
8:41 | 8:41/mi
40K· 24.85 mi
3:17:25
Rank: #9304 (-39)
24M → 40K
7:39 | 8:57/mi
25.2M
3:20:43
Rank: #9296 (+8)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:29:21
Rank: #9382 (-86)
25.2M → Finish
8:38 | 8:28/mi

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
Time1:36:40
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:52:41
Pace8:36 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1922:327:1522:32
7:15
-
10K
6.21 mi11:13:5545:087:1622:36
7:16
+0:01
15K
9.32 mi11:36:491:08:027:1822:54
7:22
+0:06
20K
12.43 mi12:00:161:31:297:2223:27
7:33
+0:11
Half
13.11 mi12:05:271:36:407:225:11
7:36
+0:03
25K
15.53 mi12:24:221:55:357:2618:55
7:48
+0:12
30K
18.64 mi12:50:432:21:567:3726:21
8:29
+0:41
20M
20.00 mi13:02:462:33:597:4212:03
8:52
+0:23
21M
21.00 mi13:13:012:44:147:4910:15
10:15
+1:23
35K
21.75 mi13:19:032:50:167:506:02
8:04
-2:11
23M
23.00 mi13:29:523:01:057:5210:49
8:38
+0:34
24M
24.00 mi13:38:333:09:467:548:41
8:41
+0:03
40K
24.85 mi13:46:123:17:257:577:39
8:57
+0:16
25.2M
25.20 mi13:49:303:20:437:583:18
9:34
+0:37
Finish
26.22 mi13:58:083:29:217:598:38
8:28
-1:06

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

7:15 /mi

Average Pace

7:59 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:35

55% of race

Time at Steady Pace

1:12:34

35% of race

Time at Slower Pace

21:12

10% of race

Average Pace: 7:59 /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 mi10:51:1922:327:1522:32
7:15
#8836
10K
6.21 mi11:13:5545:087:1622:36
7:16
#8629
15K
9.32 mi11:36:491:08:027:1822:54
7:22
#8609
20K
12.43 mi12:00:161:31:297:2223:27
7:33
#8578
Half
13.11 mi12:05:271:36:407:225:11
7:36
#8633
25K
15.53 mi12:24:221:55:357:2618:55
7:48
#8648
30K
18.64 mi12:50:432:21:567:3726:21
8:29
#8963
20M
20.00 mi13:02:462:33:597:4212:03
8:52
#9087
21M
21.00 mi13:13:012:44:147:4910:15
10:15
#9373
35K
21.75 mi13:19:032:50:167:506:02
8:04
#9289
23M
23.00 mi13:29:523:01:057:5210:49
8:38
#9209
24M
24.00 mi13:38:333:09:467:548:41
8:41
#9265
40K
24.85 mi13:46:123:17:257:577:39
8:57
#9304
25.2M
25.20 mi13:49:303:20:437:583:18
9:34
#9296
Finish
26.22 mi13:58:083:29:217:598:38
8:28
#9382
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi8836151215128671(Top 34%)1552(Top 14%)1552(Top 96%)
10K6.21 mi3.10 mi8629+2071464+481464+488478(Top 33%)1429(Top 13%)1429(Top 89%)
15K9.32 mi3.11 mi8609+201465-11465-18671(Top 34%)1552(Top 14%)1552(Top 96%)
20K12.43 mi3.11 mi8578+311493-281493-288740(Top 34%)1698(Top 16%)1698(Top 105%)
Half13.11 mi0.68 mi8633-551518-251518-259887(Top 39%)2244(Top 21%)2244(Top 139%)
25K15.53 mi2.42 mi8648-151566-481566-488951(Top 35%)1984(Top 18%)1984(Top 123%)
30K18.64 mi3.11 mi8963-3151795-2291795-22910567(Top 41%)2970(Top 27%)2970(Top 184%)
20M20.00 mi1.36 mi9087-1241918-1231918-12311440(Top 45%)3720(Top 34%)3720(Top 231%)
21M21.00 mi1.00 mi9373-2862124-2062124-20613931(Top 55%)5272(Top 48%)5272(Top 327%)
35K21.75 mi0.75 mi9289+842117+72117+78207(Top 32%)2321(Top 21%)2321(Top 144%)
23M23.00 mi1.25 mi9209+802138-212138-219220(Top 36%)2985(Top 27%)2985(Top 185%)
24M24.00 mi1.00 mi9265-562215-772215-7710499(Top 41%)3675(Top 34%)3675(Top 228%)
40K24.85 mi0.85 mi9304-392273-582273-5810614(Top 42%)3865(Top 35%)3865(Top 240%)
25.2M25.20 mi0.35 mi9296+82289-162289-169044(Top 35%)3162(Top 29%)3162(Top 196%)
Finish26.22 mi1.02 mi9382-862366-772366-7711359(Top 44%)4146(Top 38%)4146(Top 257%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

8671

Females

1552

F40-44

1552

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8478

Females

1429

F40-44

1429

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

8671

Females

1552

F40-44

1552

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

8740

Females

1698

F40-44

1698

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

9887

Females

2244

F40-44

2244

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

8951

Females

1984

F40-44

1984

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10567

Females

2970

F40-44

2970

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11440

Females

3720

F40-44

3720

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

13931

Females

5272

F40-44

5272

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8207

Females

2321

F40-44

2321

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

9220

Females

2985

F40-44

2985

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

10499

Females

3675

F40-44

3675

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

10614

Females

3865

F40-44

3865

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9044

Females

3162

F40-44

3162

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11359

Females

4146

F40-44

4146

Passing Analysis

Category:
Athletes Passed
1852
Passed By
2398
Net Change
-546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8836
5K → 10K350143+207#8836#8629
10K → 15K193173+20#8629#8609
15K → 20K223192+31#8609#8578
20K → Half1974-55#8578#8633
Half → 25K192207-15#8633#8648
25K → 30K179494-315#8648#8963
30K → 20M92216-124#8963#9087
20M → 21M56342-286#9087#9373
21M → 35K11430+84#9373#9289
35K → 23M17696+80#9289#9209
23M → 24M76132-56#9209#9265
24M → 40K76115-39#9265#9304
40K → 25.2M4739+8#9304#9296
25.2M → Finish59145-86#9296#9382
TOTALS18522398-546
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing