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BOSTON MARATHON 2024

Kathryn Kalian

Bib: 10286•F

TN

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 32%
Gender (Female)
#0 / 10924
Top 17%
Division (F18-39)
#0 / 4660
Top 31%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:10
Rank: #12929
Start → 5K
24:10 | 7:47/mi
10K· 6.21 mi
48:21
Rank: #12720 (+209)
5K → 10K
24:11 | 7:47/mi
15K· 9.32 mi
1:12:17
Rank: #12177 (+543)
10K → 15K
23:56 | 7:42/mi
20K· 12.43 mi
1:36:06
Rank: #11408 (+769)
15K → 20K
23:49 | 7:40/mi
Half· 13.11 mi
1:41:16
Rank: #11322 (+86)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:59:57
Rank: #10703 (+619)
Half → 25K
18:41 | 7:42/mi
30K· 18.64 mi
2:24:37
Rank: #9964 (+739)
25K → 30K
24:40 | 7:56/mi
20M
2:35:41
Rank: #9665 (+299)
30K → 20M
11:04 | 8:09/mi
21M
2:44:04
Rank: #9308 (+357)
20M → 21M
8:23 | 8:23/mi
35K· 21.75 mi
2:49:51
Rank: #9156 (+152)
21M → 35K
5:47 | 7:44/mi
23M
2:59:46
Rank: #8809 (+347)
35K → 23M
9:55 | 7:55/mi
24M
3:07:36
Rank: #8620 (+189)
23M → 24M
7:50 | 7:50/mi
40K· 24.85 mi
3:14:40
Rank: #8516 (+104)
24M → 40K
7:04 | 8:16/mi
25.2M
3:17:43
Rank: #8418 (+98)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:25:31
Rank: #8296 (+122)
25.2M → Finish
7:48 | 7:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:16
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:44:15
Pace7:57 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2424:107:4724:10
7:47
-
10K
6.21 mi11:17:3548:217:4724:11
7:47
0:00
15K
9.32 mi11:41:311:12:177:4523:56
7:42
-0:05
20K
12.43 mi12:05:201:36:067:4423:49
7:40
-0:02
Half
13.11 mi12:10:301:41:167:435:10
7:34
-0:06
25K
15.53 mi12:29:111:59:577:4318:41
7:42
+0:08
30K
18.64 mi12:53:512:24:377:4524:40
7:56
+0:14
20M
20.00 mi13:04:552:35:417:4711:04
8:09
+0:13
21M
21.00 mi13:13:182:44:047:498:23
8:23
+0:14
35K
21.75 mi13:19:052:49:517:495:47
7:44
-0:39
23M
23.00 mi13:29:002:59:467:499:55
7:55
+0:11
24M
24.00 mi13:36:503:07:367:497:50
7:50
-0:05
40K
24.85 mi13:43:543:14:407:507:04
8:16
+0:26
25.2M
25.20 mi13:46:573:17:437:513:03
8:51
+0:35
Finish
26.22 mi13:54:453:25:317:517:48
7:39
-1:12

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

7:51 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:05

94% of race

Time at Steady Pace

11:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi10:53:2424:107:4724:10
7:47
#12929
10K
6.21 mi11:17:3548:217:4724:11
7:47
#12720
15K
9.32 mi11:41:311:12:177:4523:56
7:42
#12177
20K
12.43 mi12:05:201:36:067:4423:49
7:40
#11408
Half
13.11 mi12:10:301:41:167:435:10
7:34
#11322
25K
15.53 mi12:29:111:59:577:4318:41
7:42
#10703
30K
18.64 mi12:53:512:24:377:4524:40
7:56
#9964
20M
20.00 mi13:04:552:35:417:4711:04
8:09
#9665
21M
21.00 mi13:13:182:44:047:498:23
8:23
#9308
35K
21.75 mi13:19:052:49:517:495:47
7:44
#9156
23M
23.00 mi13:29:002:59:467:499:55
7:55
#8809
24M
24.00 mi13:36:503:07:367:497:50
7:50
#8620
40K
24.85 mi13:43:543:14:407:507:04
8:16
#8516
25.2M
25.20 mi13:46:573:17:437:513:03
8:51
#8418
Finish
26.22 mi13:54:453:25:317:517:48
7:39
#8296
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi129293682368211221(Top 44%)2799(Top 26%)2799(Top 60%)
10K6.21 mi3.10 mi12720+2093573+1093573+10912518(Top 49%)3482(Top 32%)3482(Top 75%)
15K9.32 mi3.11 mi12177+5433292+2813292+28111221(Top 44%)2799(Top 26%)2799(Top 60%)
20K12.43 mi3.11 mi11408+7692889+4032889+4039517(Top 37%)2084(Top 19%)2084(Top 45%)
Half13.11 mi0.68 mi11322+862848+412848+419690(Top 38%)2145(Top 20%)2145(Top 46%)
25K15.53 mi2.42 mi10703+6192580+2682580+2688336(Top 33%)1702(Top 16%)1702(Top 37%)
30K18.64 mi3.11 mi9964+7392300+2802300+2807542(Top 30%)1579(Top 14%)1579(Top 34%)
20M20.00 mi1.36 mi9665+2992213+872213+877557(Top 30%)1789(Top 16%)1789(Top 38%)
21M21.00 mi1.00 mi9308+3572089+1242089+1245716(Top 22%)1177(Top 11%)1177(Top 25%)
35K21.75 mi0.75 mi9156+1522043+462043+466267(Top 25%)1421(Top 13%)1421(Top 30%)
23M23.00 mi1.25 mi8809+3471946+971946+975385(Top 21%)1177(Top 11%)1177(Top 25%)
24M24.00 mi1.00 mi8620+1891906+401906+405770(Top 23%)1423(Top 13%)1423(Top 31%)
40K24.85 mi0.85 mi8516+1041903+31903+37170(Top 28%)2200(Top 20%)2200(Top 47%)
25.2M25.20 mi0.35 mi8418+981890+131890+135896(Top 23%)1671(Top 15%)1671(Top 36%)
Finish26.22 mi1.02 mi8296+1221873+171873+176494(Top 25%)1880(Top 17%)1880(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

11221

Females

2799

F18-39

2799

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

12518

Females

3482

F18-39

3482

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

11221

Females

2799

F18-39

2799

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9517

Females

2084

F18-39

2084

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

9690

Females

2145

F18-39

2145

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8336

Females

1702

F18-39

1702

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

7542

Females

1579

F18-39

1579

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

7557

Females

1789

F18-39

1789

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5716

Females

1177

F18-39

1177

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6267

Females

1421

F18-39

1421

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5385

Females

1177

F18-39

1177

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

5770

Females

1423

F18-39

1423

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7170

Females

2200

F18-39

2200

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

5896

Females

1671

F18-39

1671

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6494

Females

1880

F18-39

1880

Passing Analysis

Category:
Athletes Passed
4986*
Passed By
353
Net Change
+4633
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12929
5K → 10K397188+209#12929#12720
10K → 15K57229+543#12720#12177
15K → 20K7745+769#12177#11408
20K → Half926+86#11408#11322
Half → 25K6234+619#11322#10703
25K → 30K756*17+739#10703#9964
30K → 20M31415+299#9964#9665
20M → 21M3603+357#9665#9308
21M → 35K1564+152#9308#9156
35K → 23M3569+347#9156#8809
23M → 24M20011+189#8809#8620
24M → 40K14339+104#8620#8516
40K → 25.2M1046+98#8516#8418
25.2M → Finish13917+122#8418#8296
TOTALS4986*353+4633

* 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