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BOSTON MARATHON 2024

Rachel Kalaouzis

Bib: 12976•F

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Overall
#0 / 25550
Top 31%
Gender (Female)
#0 / 10924
Top 16%
Division (F18-39)
#0 / 4660
Top 29%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:48
Rank: #9488
Start → 5K
22:48 | 7:20/mi
10K· 6.21 mi
45:36
Rank: #9191 (+297)
5K → 10K
22:48 | 7:20/mi
15K· 9.32 mi
1:08:23
Rank: #8891 (+300)
10K → 15K
22:47 | 7:20/mi
20K· 12.43 mi
1:31:26
Rank: #8551 (+340)
15K → 20K
23:03 | 7:25/mi
Half· 13.11 mi
1:36:34
Rank: #8574 (-23)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:55:12
Rank: #8446 (+128)
Half → 25K
18:38 | 7:41/mi
30K· 18.64 mi
2:20:11
Rank: #8291 (+155)
25K → 30K
24:59 | 8:02/mi
20M
2:31:28
Rank: #8240 (+51)
30K → 20M
11:17 | 8:18/mi
21M
2:40:42
Rank: #8267 (-27)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
2:46:54
Rank: #8248 (+19)
21M → 35K
6:12 | 8:17/mi
23M
2:57:24
Rank: #8132 (+116)
35K → 23M
10:30 | 8:23/mi
24M
3:05:34
Rank: #8057 (+75)
23M → 24M
8:10 | 8:10/mi
40K· 24.85 mi
3:12:46
Rank: #8007 (+50)
24M → 40K
7:12 | 8:25/mi
25.2M
3:15:57
Rank: #7970 (+37)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:24:14
Rank: #7982 (-12)
25.2M → Finish
8:17 | 8:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:34
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:47:40
Pace8:13 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4522:487:2022:48
7:20
-
10K
6.21 mi11:14:3345:367:2022:48
7:20
0:00
15K
9.32 mi11:37:201:08:237:2022:47
7:20
0:00
20K
12.43 mi12:00:231:31:267:2123:03
7:25
+0:05
Half
13.11 mi12:05:311:36:347:225:08
7:31
+0:06
25K
15.53 mi12:24:091:55:127:2518:38
7:41
+0:10
30K
18.64 mi12:49:082:20:117:3124:59
8:02
+0:21
20M
20.00 mi13:00:252:31:287:3411:17
8:18
+0:16
21M
21.00 mi13:09:392:40:427:399:14
9:14
+0:56
35K
21.75 mi13:15:512:46:547:406:12
8:17
-0:57
23M
23.00 mi13:26:212:57:247:4310:30
8:23
+0:06
24M
24.00 mi13:34:313:05:347:448:10
8:10
-0:13
40K
24.85 mi13:41:433:12:467:457:12
8:25
+0:15
25.2M
25.20 mi13:44:543:15:577:473:11
9:14
+0:49
Finish
26.22 mi13:53:113:24:147:488:17
8:08
-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

7:20 /mi

Average Pace

7:48 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:12

56% of race

Time at Steady Pace

1:16:37

38% of race

Time at Slower Pace

12:25

6% of race

Average Pace: 7:47 /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 mi10:51:4522:487:2022:48
7:20
#9488
10K
6.21 mi11:14:3345:367:2022:48
7:20
#9191
15K
9.32 mi11:37:201:08:237:2022:47
7:20
#8891
20K
12.43 mi12:00:231:31:267:2123:03
7:25
#8551
Half
13.11 mi12:05:311:36:347:225:08
7:31
#8574
25K
15.53 mi12:24:091:55:127:2518:38
7:41
#8446
30K
18.64 mi12:49:082:20:117:3124:59
8:02
#8291
20M
20.00 mi13:00:252:31:287:3411:17
8:18
#8240
21M
21.00 mi13:09:392:40:427:399:14
9:14
#8267
35K
21.75 mi13:15:512:46:547:406:12
8:17
#8248
23M
23.00 mi13:26:212:57:247:4310:30
8:23
#8132
24M
24.00 mi13:34:313:05:347:448:10
8:10
#8057
40K
24.85 mi13:41:433:12:467:457:12
8:25
#8007
25.2M
25.20 mi13:44:543:15:577:473:11
9:14
#7970
Finish
26.22 mi13:53:113:24:147:488:17
8:08
#7982
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9488178817888406(Top 33%)1429(Top 13%)1429(Top 31%)
10K6.21 mi3.10 mi9191+2971696+921696+928983(Top 35%)1639(Top 15%)1639(Top 35%)
15K9.32 mi3.11 mi8891+3001591+1051591+1058406(Top 33%)1429(Top 13%)1429(Top 31%)
20K12.43 mi3.11 mi8551+3401481+1101481+1107791(Top 30%)1303(Top 12%)1303(Top 28%)
Half13.11 mi0.68 mi8574-231494-131494-139339(Top 37%)1971(Top 18%)1971(Top 42%)
25K15.53 mi2.42 mi8446+1281479+151479+158200(Top 32%)1646(Top 15%)1646(Top 35%)
30K18.64 mi3.11 mi8291+1551511-321511-328108(Top 32%)1815(Top 17%)1815(Top 39%)
20M20.00 mi1.36 mi8240+511536-251536-258413(Top 33%)2189(Top 20%)2189(Top 47%)
21M21.00 mi1.00 mi8267-271607-711607-719640(Top 38%)3023(Top 28%)3023(Top 65%)
35K21.75 mi0.75 mi8248+191632-251632-259502(Top 37%)2950(Top 27%)2950(Top 63%)
23M23.00 mi1.25 mi8132+1161636-41636-47843(Top 31%)2315(Top 21%)2315(Top 50%)
24M24.00 mi1.00 mi8057+751647-111647-117568(Top 30%)2271(Top 21%)2271(Top 49%)
40K24.85 mi0.85 mi8007+501679-321679-327972(Top 31%)2574(Top 24%)2574(Top 55%)
25.2M25.20 mi0.35 mi7970+371683-41683-47640(Top 30%)2479(Top 23%)2479(Top 53%)
Finish26.22 mi1.02 mi7982-121728-451728-459365(Top 37%)3211(Top 29%)3211(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8406

Females

1429

F18-39

1429

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

8983

Females

1639

F18-39

1639

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8406

Females

1429

F18-39

1429

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

7791

Females

1303

F18-39

1303

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9339

Females

1971

F18-39

1971

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8200

Females

1646

F18-39

1646

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8108

Females

1815

F18-39

1815

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8413

Females

2189

F18-39

2189

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

9640

Females

3023

F18-39

3023

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9502

Females

2950

F18-39

2950

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

7843

Females

2315

F18-39

2315

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

7568

Females

2271

F18-39

2271

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

7972

Females

2574

F18-39

2574

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7640

Females

2479

F18-39

2479

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9365

Females

3211

F18-39

3211

Passing Analysis

Category:
Athletes Passed
2635
Passed By
1129
Net Change
+1506
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9488
5K → 10K400103+297#9488#9191
10K → 15K35050+300#9191#8891
15K → 20K38242+340#8891#8551
20K → Half2043-23#8551#8574
Half → 25K251123+128#8574#8446
25K → 30K339184+155#8446#8291
30K → 20M13584+51#8291#8240
20M → 21M119146-27#8240#8267
21M → 35K8768+19#8267#8248
35K → 23M18165+116#8248#8132
23M → 24M12550+75#8132#8057
24M → 40K11161+50#8057#8007
40K → 25.2M5922+37#8007#7970
25.2M → Finish7688-12#7970#7982
TOTALS26351129+1506
📊

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