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BOSTON MARATHON 2024

Katie Shaffer

Bib: 17899•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 44%
Masters (Masters Women)
#0 / 6263
Top 34%
Division (F45-49)
#0 / 1753
Top 42%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:46
Rank: #16620
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
52:25
Rank: #17132 (-512)
5K → 10K
26:39 | 8:35/mi
15K· 9.32 mi
1:18:17
Rank: #16494 (+638)
10K → 15K
25:52 | 8:20/mi
20K· 12.43 mi
1:44:41
Rank: #15965 (+529)
15K → 20K
26:24 | 8:30/mi
Half· 13.11 mi
1:50:19
Rank: #15881 (+84)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:11:00
Rank: #15402 (+479)
Half → 25K
20:41 | 8:32/mi
30K· 18.64 mi
2:40:55
Rank: #15525 (-123)
25K → 30K
29:55 | 9:38/mi
20M
2:52:49
Rank: #15203 (+322)
30K → 20M
11:54 | 8:45/mi
21M
3:02:08
Rank: #14880 (+323)
20M → 21M
9:19 | 9:19/mi
35K· 21.75 mi
3:08:36
Rank: #14741 (+139)
21M → 35K
6:28 | 8:39/mi
23M
3:20:04
Rank: #14542 (+199)
35K → 23M
11:28 | 9:09/mi
24M
3:28:45
Rank: #14316 (+226)
23M → 24M
8:41 | 8:41/mi
40K· 24.85 mi
3:36:45
Rank: #14240 (+76)
24M → 40K
8:00 | 9:21/mi
25.2M
3:40:00
Rank: #14112 (+128)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:48:50
Rank: #14027 (+85)
25.2M → Finish
8:50 | 8:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:19
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:58:31
Pace9:02 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:0125:468:1825:46
8:18
-
10K
6.21 mi11:44:4052:258:2626:39
8:35
+0:17
15K
9.32 mi12:10:321:18:178:2425:52
8:20
-0:15
20K
12.43 mi12:36:561:44:418:2526:24
8:30
+0:10
Half
13.11 mi12:42:341:50:198:255:38
8:15
-0:15
25K
15.53 mi13:03:152:11:008:2620:41
8:32
+0:17
30K
18.64 mi13:33:102:40:558:3829:55
9:38
+1:06
20M
20.00 mi13:45:042:52:498:3811:54
8:45
-0:53
21M
21.00 mi13:54:233:02:088:409:19
9:19
+0:34
35K
21.75 mi14:00:513:08:368:406:28
8:39
-0:40
23M
23.00 mi14:12:193:20:048:4211:28
9:09
+0:30
24M
24.00 mi14:21:003:28:458:428:41
8:41
-0:28
40K
24.85 mi14:29:003:36:458:438:00
9:21
+0:40
25.2M
25.20 mi14:32:153:40:008:443:15
9:25
+0:04
Finish
26.22 mi14:41:053:48:508:448:50
8:40
-0:45

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

8:15 /mi

Average Pace

8:44 /mi

Slowest Pace

9:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:53

73% of race

Time at Steady Pace

1:01:57

27% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:44 /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 mi11:18:0125:468:1825:46
8:18
#16620
10K
6.21 mi11:44:4052:258:2626:39
8:35
#17132
15K
9.32 mi12:10:321:18:178:2425:52
8:20
#16494
20K
12.43 mi12:36:561:44:418:2526:24
8:30
#15965
Half
13.11 mi12:42:341:50:198:255:38
8:15
#15881
25K
15.53 mi13:03:152:11:008:2620:41
8:32
#15402
30K
18.64 mi13:33:102:40:558:3829:55
9:38
#15525
20M
20.00 mi13:45:042:52:498:3811:54
8:45
#15203
21M
21.00 mi13:54:233:02:088:409:19
9:19
#14880
35K
21.75 mi14:00:513:08:368:406:28
8:39
#14741
23M
23.00 mi14:12:193:20:048:4211:28
9:09
#14542
24M
24.00 mi14:21:003:28:458:428:41
8:41
#14316
40K
24.85 mi14:29:003:36:458:438:00
9:21
#14240
25.2M
25.20 mi14:32:153:40:008:443:15
9:25
#14112
Finish
26.22 mi14:41:053:48:508:448:50
8:40
#14027
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi166205937593715428(Top 60%)5219(Top 48%)5219(Top 298%)
10K6.21 mi3.10 mi17132-5126228-2916228-29117739(Top 69%)6576(Top 60%)6576(Top 375%)
15K9.32 mi3.11 mi16494+6385847+3815847+38115428(Top 60%)5219(Top 48%)5219(Top 298%)
20K12.43 mi3.11 mi15965+5295552+2955552+29514806(Top 58%)4890(Top 45%)4890(Top 279%)
Half13.11 mi0.68 mi15881+845508+445508+4414408(Top 56%)4707(Top 43%)4707(Top 269%)
25K15.53 mi2.42 mi15402+4795237+2715237+27113233(Top 52%)4178(Top 38%)4178(Top 238%)
30K18.64 mi3.11 mi15525-1235393-1565393-15615963(Top 62%)5946(Top 54%)5946(Top 339%)
20M20.00 mi1.36 mi15203+3225249+1445249+14410895(Top 43%)3421(Top 31%)3421(Top 195%)
21M21.00 mi1.00 mi14880+3235104+1455104+14510064(Top 39%)3273(Top 30%)3273(Top 187%)
35K21.75 mi0.75 mi14741+1395056+485056+4811562(Top 45%)4059(Top 37%)4059(Top 232%)
23M23.00 mi1.25 mi14542+1995012+445012+4411970(Top 47%)4391(Top 40%)4391(Top 250%)
24M24.00 mi1.00 mi14316+2264910+1024910+10210531(Top 41%)3707(Top 34%)3707(Top 211%)
40K24.85 mi0.85 mi14240+764901+94901+912533(Top 49%)4806(Top 44%)4806(Top 274%)
25.2M25.20 mi0.35 mi14112+1284841+604841+608527(Top 33%)2935(Top 27%)2935(Top 167%)
Finish26.22 mi1.02 mi14027+854833+84833+812466(Top 49%)4709(Top 43%)4709(Top 269%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

15428

Females

5219

F45-49

5219

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

17739

Females

6576

F45-49

6576

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

15428

Females

5219

F45-49

5219

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

14806

Females

4890

F45-49

4890

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14408

Females

4707

F45-49

4707

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

13233

Females

4178

F45-49

4178

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

15963

Females

5946

F45-49

5946

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

10895

Females

3421

F45-49

3421

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10064

Females

3273

F45-49

3273

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

11562

Females

4059

F45-49

4059

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

11970

Females

4391

F45-49

4391

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

10531

Females

3707

F45-49

3707

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12533

Females

4806

F45-49

4806

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8527

Females

2935

F45-49

2935

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

12466

Females

4709

F45-49

4709

Passing Analysis

Category:
Athletes Passed
3804
Passed By
1211
Net Change
+2593
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16620
5K → 10K130642-512#16620#17132
10K → 15K65618+638#17132#16494
15K → 20K56839+529#16494#15965
20K → Half9410+84#15965#15881
Half → 25K49920+479#15881#15402
25K → 30K214337-123#15402#15525
30K → 20M3253+322#15525#15203
20M → 21M3307+323#15203#14880
21M → 35K15415+139#14880#14741
35K → 23M23940+199#14741#14542
23M → 24M23711+226#14542#14316
24M → 40K10933+76#14316#14240
40K → 25.2M1302+128#14240#14112
25.2M → Finish11934+85#14112#14027
TOTALS38041211+2593
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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