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BOSTON MARATHON 2024

Stefanie Acierno

Bib: 25184•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
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
9:22/mi
29:05
↑ 97↓ 3451.5%
10K· 6.21 mi
10:03/mi
1:00:18
↑ 79↓ 1380.4%
15K· 9.32 mi
12:21/mi
1:38:41
↑ 67↓ 78
20K· 12.43 mi
11:14/mi
2:13:34
↑ 106↓ 860.1%
Half· 13.11 mi
9:42/mi
2:20:11
↑ 19↓ 370.5%
25K· 15.53 mi
10:54/mi
2:46:36
↑ 66↓ 880.2%
30K· 18.64 mi
11:09/mi
3:21:13
↑ 181↓ 1480.2%
20M
11:15/mi
3:36:30
↑ 64↓ 500.2%
21M
12:52/mi
3:49:22
↑ 106↓ 241.6%
35K· 21.75 mi
10:52/mi
3:57:30
↑ 17↓ 861.7%
23M
11:18/mi
4:11:39
↑ 23↓ 630.6%
24M
11:04/mi
4:22:43
↓ 821.3%
40K· 24.85 mi
12:16/mi
4:33:12
↓ 200.3%
25.2M
13:09/mi
4:37:44
↑ 13↓ 160.2%
Finish· 26.22 mi
9:45/mi
4:47:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:11
Pace10:42 /mi
2nd Half
Distance13.11 mi
Time2:27:29
Pace11:15 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4529:059:2229:05
9:22
-
10K
6.21 mi12:16:581:00:189:4231:13
10:03
+0:41
15K
9.32 mi12:55:211:38:4110:3538:23
12:21
+2:18
20K
12.43 mi13:30:142:13:3410:4534:53
11:14
-1:07
Half
13.11 mi13:36:512:20:1110:426:37
9:42
-1:32
25K
15.53 mi14:03:162:46:3610:4326:25
10:54
+1:12
30K
18.64 mi14:37:533:21:1310:4834:37
11:09
+0:15
20M
20.00 mi14:53:103:36:3010:4915:17
11:15
+0:06
21M
21.00 mi15:06:023:49:2210:5512:52
12:52
+1:37
35K
21.75 mi15:14:103:57:3010:558:08
10:52
-2:00
23M
23.00 mi15:28:194:11:3910:5614:09
11:18
+0:26
24M
24.00 mi15:39:234:22:4310:5711:04
11:04
-0:14
40K
24.85 mi15:49:524:33:1211:0010:29
12:16
+1:12
25.2M
25.20 mi15:54:244:37:4411:014:32
13:09
+0:53
Finish
26.22 mi16:04:204:47:4010:599:56
9:45
-3:24

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

9:22 /mi

Average Pace

10:59 /mi

Slowest Pace

13:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:51

27% of race

Time at Steady Pace

2:24:33

50% of race

Time at Slower Pace

1:06:16

23% of race

Average Pace: 10:58 /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 mi11:45:4529:059:2229:05
9:22
#21315
10K
6.21 mi12:16:581:00:189:4231:13
10:03
#22090
15K
9.32 mi12:55:211:38:4110:3538:23
12:21
#23624
20K
12.43 mi13:30:142:13:3410:4534:53
11:14
#23522
Half
13.11 mi13:36:512:20:1110:426:37
9:42
#23401
25K
15.53 mi14:03:162:46:3610:4326:25
10:54
#23042
30K
18.64 mi14:37:533:21:1310:4834:37
11:09
#22564
20M
20.00 mi14:53:103:36:3010:4915:17
11:15
#22376
21M
21.00 mi15:06:023:49:2210:5512:52
12:52
#22292
35K
21.75 mi15:14:103:57:3010:558:08
10:52
#22191
23M
23.00 mi15:28:194:11:3910:5614:09
11:18
#22020
24M
24.00 mi15:39:234:22:4310:5711:04
11:04
#21894
40K
24.85 mi15:49:524:33:1211:0010:29
12:16
#21849
25.2M
25.20 mi15:54:244:37:4411:014:32
13:09
#21816
Finish
26.22 mi16:04:204:47:4010:599:56
9:45
#21722
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi213158575857524984(Top 98%)10571(Top 97%)10571(Top 603%)
10K6.21 mi3.10 mi22090-7758956-3818956-38122653(Top 89%)9261(Top 85%)9261(Top 528%)
15K9.32 mi3.11 mi23624-15349748-7929748-79224984(Top 98%)10571(Top 97%)10571(Top 603%)
20K12.43 mi3.11 mi23522+1029711+379711+3723024(Top 90%)9464(Top 87%)9464(Top 540%)
Half13.11 mi0.68 mi23401+1219654+579654+5720671(Top 81%)8246(Top 75%)8246(Top 470%)
25K15.53 mi2.42 mi23042+3599476+1789476+17821299(Top 83%)8633(Top 79%)8633(Top 492%)
30K18.64 mi3.11 mi22564+4789256+2209256+22020308(Top 79%)8275(Top 76%)8275(Top 472%)
20M20.00 mi1.36 mi22376+1889174+829174+8219855(Top 78%)8149(Top 75%)8149(Top 465%)
21M21.00 mi1.00 mi22292+849150+249150+2420512(Top 80%)8588(Top 79%)8588(Top 490%)
35K21.75 mi0.75 mi22191+1019114+369114+3619537(Top 76%)8103(Top 74%)8103(Top 462%)
23M23.00 mi1.25 mi22020+1719044+709044+7019192(Top 75%)7987(Top 73%)7987(Top 456%)
24M24.00 mi1.00 mi21894+1269005+399005+3919418(Top 76%)8165(Top 75%)8165(Top 466%)
40K24.85 mi0.85 mi21849+459002+39002+320953(Top 82%)8970(Top 82%)8970(Top 512%)
25.2M25.20 mi0.35 mi21816+338993+98993+920022(Top 78%)8535(Top 78%)8535(Top 487%)
Finish26.22 mi1.02 mi21722+948963+308963+3017557(Top 69%)7296(Top 67%)7296(Top 416%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

24984

Females

10571

F45-49

10571

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

22653

Females

9261

F45-49

9261

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

24984

Females

10571

F45-49

10571

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23024

Females

9464

F45-49

9464

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

20671

Females

8246

F45-49

8246

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

21299

Females

8633

F45-49

8633

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

20308

Females

8275

F45-49

8275

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

19855

Females

8149

F45-49

8149

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

20512

Females

8588

F45-49

8588

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

19537

Females

8103

F45-49

8103

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19192

Females

7987

F45-49

7987

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

19418

Females

8165

F45-49

8165

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

20953

Females

8970

F45-49

8970

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20022

Females

8535

F45-49

8535

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

17557

Females

7296

F45-49

7296

Passing Analysis

Category:
Athletes Passed
2138
Passed By
2545
Net Change
-407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21315
5K → 10K43818-775#21315#22090
10K → 15K31537-1534#22090#23624
15K → 20K18583+102#23624#23522
20K → Half1210+121#23522#23401
Half → 25K3634+359#23401#23042
25K → 30K4857+478#23042#22564
30K → 20M1957+188#22564#22376
20M → 21M11127+84#22376#22292
21M → 35K1098+101#22292#22191
35K → 23M1776+171#22191#22020
23M → 24M1326+126#22020#21894
24M → 40K7328+45#21894#21849
40K → 25.2M385+33#21849#21816
25.2M → Finish1039+94#21816#21722
TOTALS21382545-407
📊

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