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BOSTON MARATHON 2024

Kirsten Alexander

Bib: 11302•F

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 47%
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:59
Rank: #14975
Start → 5K
8:02/mi
24:59 split
10K· 6.21 mi
51:21
Rank: #16130 (-1155)
5K → 10K
8:29/mi
26:22 split
15K· 9.32 mi
1:17:05
Rank: #15731 (+399)
10K → 15K
8:17/mi
25:44 split
20K· 12.43 mi
1:43:45
Rank: #15552 (+179)
15K → 20K
8:35/mi
26:40 split
Half· 13.11 mi
1:49:29
Rank: #15529 (+23)
20K → Half
8:24/mi
5:44 split
25K· 15.53 mi
2:11:22
Rank: #15532 (-3)
Half → 25K
9:02/mi
21:53 split
30K· 18.64 mi
2:41:05
Rank: #15572 (-40)
25K → 30K
9:34/mi
29:43 split
20M
2:54:20
Rank: #15580 (-8)
30K → 20M
9:45/mi
13:15 split
21M
3:04:45
Rank: #15520 (+60)
20M → 21M
10:25/mi
10:25 split
35K· 21.75 mi
3:11:40
Rank: #15491 (+29)
21M → 35K
9:15/mi
6:55 split
23M
3:23:14
Rank: #15298 (+193)
35K → 23M
9:14/mi
11:34 split
24M
3:32:12
Rank: #15139 (+159)
23M → 24M
8:58/mi
8:58 split
40K· 24.85 mi
3:39:49
Rank: #14898 (+241)
24M → 40K
8:54/mi
7:37 split
25.2M
3:43:09
Rank: #14778 (+120)
40K → 25.2M
9:40/mi
3:20 split
Finish· 26.22 mi
3:51:36
Rank: #14585 (+193)
25.2M → Finish
8:18/mi
8:27 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:29
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time2:02:07
Pace9:19 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5424:598:0224:59
8:02
-
10K
6.21 mi11:19:1651:218:1626:22
8:29
+0:27
15K
9.32 mi11:45:001:17:058:1625:44
8:17
-0:12
20K
12.43 mi12:11:401:43:458:2126:40
8:35
+0:18
Half
13.11 mi12:17:241:49:298:215:44
8:24
-0:11
25K
15.53 mi12:39:172:11:228:2721:53
9:02
+0:38
30K
18.64 mi13:09:002:41:058:3829:43
9:34
+0:32
20M
20.00 mi13:22:152:54:208:4313:15
9:45
+0:11
21M
21.00 mi13:32:403:04:458:4810:25
10:25
+0:40
35K
21.75 mi13:39:353:11:408:496:55
9:15
-1:10
23M
23.00 mi13:51:093:23:148:5011:34
9:14
-0:01
24M
24.00 mi14:00:073:32:128:518:58
8:58
-0:16
40K
24.85 mi14:07:443:39:498:517:37
8:54
-0:04
25.2M
25.20 mi14:11:043:43:098:513:20
9:40
+0:46
Finish
26.22 mi14:19:313:51:368:508:27
8:18
-1:22

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

8:02 /mi

Average Pace

8:50 /mi

Slowest Pace

10:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:56

51% of race

Time at Steady Pace

56:57

25% of race

Time at Slower Pace

56:43

24% of race

Average Pace: 8:50 /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 mi10:52:5424:598:0224:59
8:02
#14975
10K
6.21 mi11:19:1651:218:1626:22
8:29
#16130
15K
9.32 mi11:45:001:17:058:1625:44
8:17
#15731
20K
12.43 mi12:11:401:43:458:2126:40
8:35
#15552
Half
13.11 mi12:17:241:49:298:215:44
8:24
#15529
25K
15.53 mi12:39:172:11:228:2721:53
9:02
#15532
30K
18.64 mi13:09:002:41:058:3829:43
9:34
#15572
20M
20.00 mi13:22:152:54:208:4313:15
9:45
#15580
21M
21.00 mi13:32:403:04:458:4810:25
10:25
#15520
35K
21.75 mi13:39:353:11:408:496:55
9:15
#15491
23M
23.00 mi13:51:093:23:148:5011:34
9:14
#15298
24M
24.00 mi14:00:073:32:128:518:58
8:58
#15139
40K
24.85 mi14:07:443:39:498:517:37
8:54
#14898
25.2M
25.20 mi14:11:043:43:098:513:20
9:40
#14778
Finish
26.22 mi14:19:313:51:368:508:27
8:18
#14585
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi149754931493115191(Top 59%)5080(Top 47%)5080(Top 109%)
10K6.21 mi3.10 mi16130-11555626-6955626-69517190(Top 67%)6245(Top 57%)6245(Top 134%)
15K9.32 mi3.11 mi15731+3995398+2285398+22815191(Top 59%)5080(Top 47%)5080(Top 109%)
20K12.43 mi3.11 mi15552+1795297+1015297+10115244(Top 60%)5156(Top 47%)5156(Top 111%)
Half13.11 mi0.68 mi15529+235285+125285+1215223(Top 60%)5172(Top 47%)5172(Top 111%)
25K15.53 mi2.42 mi15532-35324-395324-3915625(Top 61%)5516(Top 50%)5516(Top 118%)
30K18.64 mi3.11 mi15572-405419-955419-9515719(Top 62%)5808(Top 53%)5808(Top 125%)
20M20.00 mi1.36 mi15580-85464-455464-4515559(Top 61%)5983(Top 55%)5983(Top 128%)
21M21.00 mi1.00 mi15520+605474-105474-1014560(Top 57%)5601(Top 51%)5601(Top 120%)
35K21.75 mi0.75 mi15491+295487-135487-1314475(Top 57%)5564(Top 51%)5564(Top 119%)
23M23.00 mi1.25 mi15298+1935418+695418+6912341(Top 48%)4581(Top 42%)4581(Top 98%)
24M24.00 mi1.00 mi15139+1595360+585360+5812016(Top 47%)4424(Top 40%)4424(Top 95%)
40K24.85 mi0.85 mi14898+2415272+885272+8810461(Top 41%)3796(Top 35%)3796(Top 81%)
25.2M25.20 mi0.35 mi14778+1205225+475225+479539(Top 37%)3442(Top 32%)3442(Top 74%)
Finish26.22 mi1.02 mi14585+1935139+865139+8610333(Top 40%)3673(Top 34%)3673(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15191

Females

5080

F18-39

5080

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17190

Females

6245

F18-39

6245

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15191

Females

5080

F18-39

5080

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15244

Females

5156

F18-39

5156

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15223

Females

5172

F18-39

5172

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

15625

Females

5516

F18-39

5516

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

15719

Females

5808

F18-39

5808

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

15559

Females

5983

F18-39

5983

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

14560

Females

5601

F18-39

5601

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

14475

Females

5564

F18-39

5564

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12341

Females

4581

F18-39

4581

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12016

Females

4424

F18-39

4424

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10461

Females

3796

F18-39

3796

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9539

Females

3442

F18-39

3442

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10333

Females

3673

F18-39

3673

Passing Analysis

Category:
Athletes Passed
2659
Passed By
2269
Net Change
+390
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14975
5K → 10K491204-1155#14975#16130
10K → 15K45859+399#16130#15731
15K → 20K319140+179#15731#15552
20K → Half5027+23#15552#15529
Half → 25K224227-3#15529#15532
25K → 30K243283-40#15532#15572
30K → 20M120128-8#15572#15580
20M → 21M14989+60#15580#15520
21M → 35K8556+29#15520#15491
35K → 23M21421+193#15491#15298
23M → 24M17516+159#15298#15139
24M → 40K2443+241#15139#14898
40K → 25.2M1266+120#14898#14778
25.2M → Finish20310+193#14778#14585
TOTALS26592269+390
📊

Passing Visuals

Category:
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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