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BOSTON MARATHON 2024

Maylani Siemasz

Bib: 12132•F

MI

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 39%
Gender (Female)
#0 / 10924
Top 24%
Division (F18-39)
#0 / 4660
Top 40%
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
7:18/mi
22:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
46:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:10:35
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:37:34
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:42:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:18/mi
2:03:05
↑ 66↓ 880.2%
30K· 18.64 mi
8:26/mi
2:29:18
↑ 181↓ 1480.2%
20M
8:29/mi
2:40:50
↑ 64↓ 500.2%
21M
9:00/mi
2:49:50
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:55:45
↑ 17↓ 861.7%
23M
8:18/mi
3:06:09
↑ 23↓ 630.6%
24M
7:43/mi
3:13:52
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:20:47
↓ 200.3%
25.2M
8:59/mi
3:23:53
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:31:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:57
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:48:42
Pace8:18 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2022:427:1822:42
7:18
-
10K
6.21 mi11:15:0246:247:2823:42
7:38
+0:20
15K
9.32 mi11:39:131:10:357:3424:11
7:47
+0:09
20K
12.43 mi12:06:121:37:347:5126:59
8:41
+0:54
Half
13.11 mi12:11:351:42:577:515:23
7:53
-0:48
25K
15.53 mi12:31:432:03:057:5520:08
8:18
+0:25
30K
18.64 mi12:57:562:29:188:0126:13
8:26
+0:08
20M
20.00 mi13:09:282:40:508:0211:32
8:29
+0:03
21M
21.00 mi13:18:282:49:508:059:00
9:00
+0:31
35K
21.75 mi13:24:232:55:458:055:55
7:55
-1:05
23M
23.00 mi13:34:473:06:098:0610:24
8:18
+0:23
24M
24.00 mi13:42:303:13:528:057:43
7:43
-0:35
40K
24.85 mi13:49:253:20:478:056:55
8:05
+0:22
25.2M
25.20 mi13:52:313:23:538:053:06
8:59
+0:54
Finish
26.22 mi14:00:173:31:398:057:46
7:37
-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

7:18 /mi

Average Pace

8:05 /mi

Slowest Pace

9:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:04

41% of race

Time at Steady Pace

48:45

23% of race

Time at Slower Pace

1:16:50

36% of race

Average Pace: 8:04 /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 mi10:51:2022:427:1822:42
7:18
#9239
10K
6.21 mi11:15:0246:247:2823:42
7:38
#10211
15K
9.32 mi11:39:131:10:357:3424:11
7:47
#10759
20K
12.43 mi12:06:121:37:347:5126:59
8:41
#12271
Half
13.11 mi12:11:351:42:577:515:23
7:53
#12249
25K
15.53 mi12:31:432:03:057:5520:08
8:18
#12149
30K
18.64 mi12:57:562:29:188:0126:13
8:26
#11727
20M
20.00 mi13:09:282:40:508:0211:32
8:29
#11494
21M
21.00 mi13:18:282:49:508:059:00
9:00
#11243
35K
21.75 mi13:24:232:55:458:055:55
7:55
#11028
23M
23.00 mi13:34:473:06:098:0610:24
8:18
#10736
24M
24.00 mi13:42:303:13:528:057:43
7:43
#10414
40K
24.85 mi13:49:253:20:478:056:55
8:05
#10220
25.2M
25.20 mi13:52:313:23:538:053:06
8:59
#10141
Finish
26.22 mi14:00:173:31:398:057:46
7:37
#9960
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi92391678167811814(Top 46%)3132(Top 29%)3132(Top 67%)
10K6.21 mi3.10 mi10211-9722159-4812159-48111301(Top 44%)2813(Top 26%)2813(Top 60%)
15K9.32 mi3.11 mi10759-5482501-3422501-34211814(Top 46%)3132(Top 29%)3132(Top 67%)
20K12.43 mi3.11 mi12271-15123367-8663367-86615770(Top 62%)5447(Top 50%)5447(Top 117%)
Half13.11 mi0.68 mi12249+223355+123355+1211981(Top 47%)3307(Top 30%)3307(Top 71%)
25K15.53 mi2.42 mi12149+1003349+63349+612003(Top 47%)3513(Top 32%)3513(Top 75%)
30K18.64 mi3.11 mi11727+4223204+1453204+14510326(Top 40%)2859(Top 26%)2859(Top 61%)
20M20.00 mi1.36 mi11494+2333130+743130+749378(Top 37%)2644(Top 24%)2644(Top 57%)
21M21.00 mi1.00 mi11243+2513058+723058+728611(Top 34%)2493(Top 23%)2493(Top 53%)
35K21.75 mi0.75 mi11028+2152988+702988+707263(Top 28%)1885(Top 17%)1885(Top 40%)
23M23.00 mi1.25 mi10736+2922896+922896+927411(Top 29%)2099(Top 19%)2099(Top 45%)
24M24.00 mi1.00 mi10414+3222785+1112785+1115159(Top 20%)1159(Top 11%)1159(Top 25%)
40K24.85 mi0.85 mi10220+1942730+552730+556272(Top 25%)1789(Top 16%)1789(Top 38%)
25.2M25.20 mi0.35 mi10141+792707+232707+236586(Top 26%)1986(Top 18%)1986(Top 43%)
Finish26.22 mi1.02 mi9960+1812656+512656+516315(Top 25%)1809(Top 17%)1809(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

11814

Females

3132

F18-39

3132

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11301

Females

2813

F18-39

2813

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

11814

Females

3132

F18-39

3132

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

15770

Females

5447

F18-39

5447

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

11981

Females

3307

F18-39

3307

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12003

Females

3513

F18-39

3513

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10326

Females

2859

F18-39

2859

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9378

Females

2644

F18-39

2644

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

8611

Females

2493

F18-39

2493

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7263

Females

1885

F18-39

1885

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7411

Females

2099

F18-39

2099

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5159

Females

1159

F18-39

1159

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6272

Females

1789

F18-39

1789

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6586

Females

1986

F18-39

1986

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6315

Females

1809

F18-39

1809

Passing Analysis

Category:
Athletes Passed
2892*
Passed By
3612
Net Change
-721
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9239
5K → 10K531024-972#9239#10211
10K → 15K83631-548#10211#10759
15K → 20K261538-1512#10759#12271
20K → Half5533+22#12271#12249
Half → 25K289189+100#12249#12149
25K → 30K51391+422#12149#11727
30K → 20M27340+233#11727#11494
20M → 21M27827+251#11494#11243
21M → 35K2172+215#11243#11028
35K → 23M30614+292#11028#10736
23M → 24M3242+322#10736#10414
24M → 40K201*7+194#10414#10220
40K → 25.2M845+79#10220#10141
25.2M → Finish190*9+181#10141#9960
TOTALS2892*3612-721

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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