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BOSTON MARATHON 2023

Samantha Sullivan

Bib: 14453•F

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 33%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:57/mi
24:42
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
49:32
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:14:32
↑ 67↓ 78
20K· 12.43 mi
8:10/mi
1:39:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:45:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:59/mi
2:04:37
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:29:26
↑ 181↓ 1480.2%
20M
8:23/mi
2:40:49
↑ 64↓ 500.2%
21M
8:51/mi
2:49:40
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
2:55:52
↑ 17↓ 861.7%
23M
8:32/mi
3:06:33
↑ 23↓ 630.6%
24M
8:19/mi
3:14:52
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:21:57
↓ 200.3%
25.2M
8:45/mi
3:24:58
↑ 13↓ 160.2%
Finish· 26.22 mi
7:59/mi
3:33:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:15
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:47:51
Pace8:14 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3924:427:5724:42
7:57
-
10K
6.21 mi11:18:2949:327:5824:50
8:00
+0:03
15K
9.32 mi11:43:291:14:328:0025:00
8:03
+0:03
20K
12.43 mi12:08:521:39:558:0225:23
8:10
+0:07
Half
13.11 mi12:14:121:45:158:025:20
7:49
-0:21
25K
15.53 mi12:33:342:04:378:0119:22
7:59
+0:10
30K
18.64 mi12:58:232:29:268:0124:49
7:59
0:00
20M
20.00 mi13:09:462:40:498:0211:23
8:23
+0:24
21M
21.00 mi13:18:372:49:408:058:51
8:51
+0:28
35K
21.75 mi13:24:492:55:528:056:12
8:17
-0:34
23M
23.00 mi13:35:303:06:338:0710:41
8:32
+0:15
24M
24.00 mi13:43:493:14:528:078:19
8:19
-0:13
40K
24.85 mi13:50:543:21:578:087:05
8:17
-0:02
25.2M
25.20 mi13:53:553:24:588:083:01
8:45
+0:28
Finish
26.22 mi14:02:033:33:068:088:08
7:59
-0:46

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

7:49 /mi

Average Pace

8:08 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:14

94% of race

Time at Steady Pace

11:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:08 /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 mi10:53:3924:427:5724:42
7:57
#13652
10K
6.21 mi11:18:2949:327:5824:50
8:00
#14182
15K
9.32 mi11:43:291:14:328:0025:00
8:03
#14338
20K
12.43 mi12:08:521:39:558:0225:23
8:10
#14393
Half
13.11 mi12:14:121:45:158:025:20
7:49
#14321
25K
15.53 mi12:33:342:04:378:0119:22
7:59
#14038
30K
18.64 mi12:58:232:29:268:0124:49
7:59
#13422
20M
20.00 mi13:09:462:40:498:0211:23
8:23
#13351
21M
21.00 mi13:18:372:49:408:058:51
8:51
#13293
35K
21.75 mi13:24:492:55:528:056:12
8:17
#13306
23M
23.00 mi13:35:303:06:338:0710:41
8:32
#13285
24M
24.00 mi13:43:493:14:528:078:19
8:19
#13265
40K
24.85 mi13:50:543:21:578:087:05
8:17
#13203
25.2M
25.20 mi13:53:553:24:588:083:01
8:45
#13132
Finish
26.22 mi14:02:033:33:068:088:08
7:59
#13080
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi136523815381514779(Top 56%)4552(Top 40%)4552(Top 93%)
10K6.21 mi3.10 mi14182-5304152-3374152-33714762(Top 55%)4515(Top 40%)4515(Top 92%)
15K9.32 mi3.11 mi14338-1564254-1024254-10214779(Top 56%)4552(Top 40%)4552(Top 93%)
20K12.43 mi3.11 mi14393-554309-554309-5514750(Top 55%)4555(Top 40%)4555(Top 93%)
Half13.11 mi0.68 mi14321+724271+384271+3812943(Top 49%)3472(Top 30%)3472(Top 71%)
25K15.53 mi2.42 mi14038+2834133+1384133+13812665(Top 48%)3457(Top 30%)3457(Top 71%)
30K18.64 mi3.11 mi13422+6163793+3403793+34010819(Top 41%)2557(Top 22%)2557(Top 52%)
20M20.00 mi1.36 mi13351+713768+253768+2512886(Top 48%)3796(Top 33%)3796(Top 78%)
21M21.00 mi1.00 mi13293+583749+193749+1912564(Top 47%)3718(Top 33%)3718(Top 76%)
35K21.75 mi0.75 mi13306-133776-273776-2714036(Top 53%)4572(Top 40%)4572(Top 94%)
23M23.00 mi1.25 mi13285+213790-143790-1413442(Top 50%)4305(Top 38%)4305(Top 88%)
24M24.00 mi1.00 mi13265+203797-73797-713338(Top 50%)4296(Top 38%)4296(Top 88%)
40K24.85 mi0.85 mi13203+623782+153782+1511956(Top 45%)3646(Top 32%)3646(Top 75%)
25.2M25.20 mi0.35 mi13132+713758+243758+2411113(Top 42%)3271(Top 29%)3271(Top 67%)
Finish26.22 mi1.02 mi13080+523746+123746+1212021(Top 45%)3719(Top 33%)3719(Top 76%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14779

Females

4552

F18-39

4552

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14762

Females

4515

F18-39

4515

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14779

Females

4552

F18-39

4552

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14750

Females

4555

F18-39

4555

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

12943

Females

3472

F18-39

3472

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12665

Females

3457

F18-39

3457

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10819

Females

2557

F18-39

2557

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12886

Females

3796

F18-39

3796

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12564

Females

3718

F18-39

3718

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14036

Females

4572

F18-39

4572

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13442

Females

4305

F18-39

4305

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13338

Females

4296

F18-39

4296

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11956

Females

3646

F18-39

3646

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11113

Females

3271

F18-39

3271

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12021

Females

3719

F18-39

3719

Passing Analysis

Category:
Athletes Passed
2112
Passed By
1540
Net Change
+572
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13652
5K → 10K102632-530#13652#14182
10K → 15K122278-156#14182#14338
15K → 20K164219-55#14338#14393
20K → Half797+72#14393#14321
Half → 25K31027+283#14321#14038
25K → 30K6204+616#14038#13422
30K → 20M11443+71#13422#13351
20M → 21M12062+58#13351#13293
21M → 35K5467-13#13293#13306
35K → 23M10382+21#13306#13285
23M → 24M7858+20#13285#13265
24M → 40K8826+62#13265#13203
40K → 25.2M765+71#13203#13132
25.2M → Finish8230+52#13132#13080
TOTALS21121540+572
📊

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