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BOSTON MARATHON 2024

Susan Day

Bib: 18378•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 42%
Gender (Female)
#0 / 10924
Top 29%
Masters (Masters Women)
#0 / 6263
Top 16%
Division (F50-54)
#0 / 1187
Top 10%
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
7:55/mi
24:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:01/mi
49:30
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:14:10
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:39:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:44:47
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:04:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:35/mi
2:31:21
↑ 181↓ 1480.2%
20M
8:29/mi
2:42:53
↑ 64↓ 500.2%
21M
9:07/mi
2:52:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
2:58:04
↑ 17↓ 861.7%
23M
8:16/mi
3:08:25
↑ 23↓ 630.6%
24M
8:17/mi
3:16:42
↓ 821.3%
40K· 24.85 mi
8:38/mi
3:24:05
↓ 200.3%
25.2M
9:14/mi
3:27:16
↑ 13↓ 160.2%
Finish· 26.22 mi
7:53/mi
3:35:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:47
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time1:50:31
Pace8:26 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2124:357:5524:35
7:55
-
10K
6.21 mi11:42:1649:307:5824:55
8:01
+0:06
15K
9.32 mi12:06:561:14:107:5724:40
7:56
-0:05
20K
12.43 mi12:32:041:39:187:5925:08
8:05
+0:09
Half
13.11 mi12:37:331:44:478:005:29
8:02
-0:03
25K
15.53 mi12:57:272:04:418:0219:54
8:12
+0:10
30K
18.64 mi13:24:072:31:218:0726:40
8:35
+0:23
20M
20.00 mi13:35:392:42:538:0911:32
8:29
-0:06
21M
21.00 mi13:44:462:52:008:119:07
9:07
+0:38
35K
21.75 mi13:50:502:58:048:116:04
8:07
-1:00
23M
23.00 mi14:01:113:08:258:1210:21
8:16
+0:09
24M
24.00 mi14:09:283:16:428:128:17
8:17
+0:01
40K
24.85 mi14:16:513:24:058:137:23
8:38
+0:21
25.2M
25.20 mi14:20:023:27:168:133:11
9:14
+0:36
Finish
26.22 mi14:28:043:35:188:138:02
7:53
-1:21

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

7:53 /mi

Average Pace

8:13 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:00

94% of race

Time at Steady Pace

12:18

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi11:17:2124:357:5524:35
7:55
#13975
10K
6.21 mi11:42:1649:307:5824:55
8:01
#14166
15K
9.32 mi12:06:561:14:107:5724:40
7:56
#13757
20K
12.43 mi12:32:041:39:187:5925:08
8:05
#13364
Half
13.11 mi12:37:331:44:478:005:29
8:02
#13328
25K
15.53 mi12:57:272:04:418:0219:54
8:12
#12909
30K
18.64 mi13:24:072:31:218:0726:40
8:35
#12464
20M
20.00 mi13:35:392:42:538:0911:32
8:29
#12179
21M
21.00 mi13:44:462:52:008:119:07
9:07
#11928
35K
21.75 mi13:50:502:58:048:116:04
8:07
#11780
23M
23.00 mi14:01:113:08:258:1210:21
8:16
#11406
24M
24.00 mi14:09:283:16:428:128:17
8:17
#11203
40K
24.85 mi14:16:513:24:058:137:23
8:38
#11068
25.2M
25.20 mi14:20:023:27:168:133:11
9:14
#10995
Finish
26.22 mi14:28:043:35:188:138:02
7:53
#10841
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi139754293429313004(Top 51%)3801(Top 35%)3801(Top 320%)
10K6.21 mi3.10 mi14166-1914437-1444437-14414356(Top 56%)4542(Top 42%)4542(Top 383%)
15K9.32 mi3.11 mi13757+4094208+2294208+22913004(Top 51%)3801(Top 35%)3801(Top 320%)
20K12.43 mi3.11 mi13364+3933993+2153993+21512463(Top 49%)3559(Top 33%)3559(Top 300%)
Half13.11 mi0.68 mi13328+363982+113982+1113016(Top 51%)3884(Top 36%)3884(Top 327%)
25K15.53 mi2.42 mi12909+4193759+2233759+22311417(Top 45%)3186(Top 29%)3186(Top 268%)
30K18.64 mi3.11 mi12464+4453609+1503609+15011092(Top 43%)3235(Top 30%)3235(Top 273%)
20M20.00 mi1.36 mi12179+2853503+1063503+1069386(Top 37%)2652(Top 24%)2652(Top 223%)
21M21.00 mi1.00 mi11928+2513426+773426+779125(Top 36%)2758(Top 25%)2758(Top 232%)
35K21.75 mi0.75 mi11780+1483375+513375+518510(Top 33%)2476(Top 23%)2476(Top 209%)
23M23.00 mi1.25 mi11406+3743252+1233252+1237178(Top 28%)1993(Top 18%)1993(Top 168%)
24M24.00 mi1.00 mi11203+2033191+613191+618241(Top 32%)2605(Top 24%)2605(Top 219%)
40K24.85 mi0.85 mi11068+1353170+213170+219076(Top 36%)3118(Top 29%)3118(Top 263%)
25.2M25.20 mi0.35 mi10995+733146+243146+247686(Top 30%)2525(Top 23%)2525(Top 213%)
Finish26.22 mi1.02 mi10841+1543118+283118+287861(Top 31%)2503(Top 23%)2503(Top 211%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13004

Females

3801

F50-54

3801

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14356

Females

4542

F50-54

4542

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13004

Females

3801

F50-54

3801

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12463

Females

3559

F50-54

3559

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13016

Females

3884

F50-54

3884

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

11417

Females

3186

F50-54

3186

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11092

Females

3235

F50-54

3235

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9386

Females

2652

F50-54

2652

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9125

Females

2758

F50-54

2758

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8510

Females

2476

F50-54

2476

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7178

Females

1993

F50-54

1993

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8241

Females

2605

F50-54

2605

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9076

Females

3118

F50-54

3118

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7686

Females

2525

F50-54

2525

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

7861

Females

2503

F50-54

2503

Passing Analysis

Category:
Athletes Passed
3961
Passed By
827
Net Change
+3134
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13975
5K → 10K220411-191#13975#14166
10K → 15K46657+409#14166#13757
15K → 20K46370+393#13757#13364
20K → Half6529+36#13364#13328
Half → 25K47657+419#13328#12909
25K → 30K51772+445#12909#12464
30K → 20M30823+285#12464#12179
20M → 21M27019+251#12179#11928
21M → 35K1557+148#11928#11780
35K → 23M3828+374#11780#11406
23M → 24M22017+203#11406#11203
24M → 40K17338+135#11203#11068
40K → 25.2M807+73#11068#10995
25.2M → Finish16612+154#10995#10841
TOTALS3961827+3134
📊

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