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BOSTON MARATHON 2023

Laura Stephen

Bib: 20947•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 34%
Masters (Masters Women)
#0 / 6539
Top 21%
Division (F55-59)
#0 / 815
Top 7%
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
8:15/mi
25:38
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
50:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:04/mi
1:15:34
↑ 67↓ 78
20K· 12.43 mi
8:09/mi
1:40:52
↑ 106↓ 860.1%
Half· 13.11 mi
8:08/mi
1:46:25
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:06:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:32:13
↑ 181↓ 1480.2%
20M
8:17/mi
2:43:28
↑ 64↓ 500.2%
21M
8:36/mi
2:52:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:58:02
↑ 17↓ 861.7%
23M
8:14/mi
3:08:21
↑ 23↓ 630.6%
24M
7:59/mi
3:16:20
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:23:17
↓ 200.3%
25.2M
8:33/mi
3:26:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:43/mi
3:34:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:25
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:47:41
Pace8:13 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4725:388:1525:38
8:15
-
10K
6.21 mi11:42:3850:298:0724:51
8:00
-0:15
15K
9.32 mi12:07:431:15:348:0625:05
8:04
+0:04
20K
12.43 mi12:33:011:40:528:0725:18
8:09
+0:05
Half
13.11 mi12:38:341:46:258:075:33
8:08
-0:01
25K
15.53 mi12:58:262:06:178:0819:52
8:12
+0:04
30K
18.64 mi13:24:222:32:138:1025:56
8:21
+0:09
20M
20.00 mi13:35:372:43:288:1011:15
8:17
-0:04
21M
21.00 mi13:44:132:52:048:128:36
8:36
+0:19
35K
21.75 mi13:50:112:58:028:115:58
7:59
-0:37
23M
23.00 mi14:00:303:08:218:1110:19
8:14
+0:15
24M
24.00 mi14:08:293:16:208:117:59
7:59
-0:15
40K
24.85 mi14:15:263:23:178:116:57
8:08
+0:09
25.2M
25.20 mi14:18:233:26:148:112:57
8:33
+0:25
Finish
26.22 mi14:26:153:34:068:107:52
7:43
-0:50

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

7:43 /mi

Average Pace

8:10 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:33

95% of race

Time at Steady Pace

11:33

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:10 /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 mi11:17:4725:388:1525:38
8:15
#15817
10K
6.21 mi11:42:3850:298:0724:51
8:00
#15282
15K
9.32 mi12:07:431:15:348:0625:05
8:04
#15166
20K
12.43 mi12:33:011:40:528:0725:18
8:09
#14996
Half
13.11 mi12:38:341:46:258:075:33
8:08
#15002
25K
15.53 mi12:58:262:06:178:0819:52
8:12
#14839
30K
18.64 mi13:24:222:32:138:1025:56
8:21
#14560
20M
20.00 mi13:35:372:43:288:1011:15
8:17
#14358
21M
21.00 mi13:44:132:52:048:128:36
8:36
#14166
35K
21.75 mi13:50:112:58:028:115:58
7:59
#14058
23M
23.00 mi14:00:303:08:218:1110:19
8:14
#13876
24M
24.00 mi14:08:293:16:208:117:59
7:59
#13741
40K
24.85 mi14:15:263:23:178:116:57
8:08
#13605
25.2M
25.20 mi14:18:233:26:148:112:57
8:33
#13526
Finish
26.22 mi14:26:153:34:068:107:52
7:43
#13368
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi158175161516114991(Top 56%)4672(Top 41%)4672(Top 573%)
10K6.21 mi3.10 mi15282+5354823+3384823+33814800(Top 56%)4544(Top 40%)4544(Top 558%)
15K9.32 mi3.11 mi15166+1164760+634760+6314991(Top 56%)4672(Top 41%)4672(Top 573%)
20K12.43 mi3.11 mi14996+1704681+794681+7914548(Top 55%)4428(Top 39%)4428(Top 543%)
Half13.11 mi0.68 mi15002-64683-24683-215341(Top 58%)4875(Top 43%)4875(Top 598%)
25K15.53 mi2.42 mi14839+1634610+734610+7314186(Top 53%)4326(Top 38%)4326(Top 531%)
30K18.64 mi3.11 mi14560+2794481+1294481+12913335(Top 50%)3940(Top 34%)3940(Top 483%)
20M20.00 mi1.36 mi14358+2024397+844397+8412246(Top 46%)3428(Top 30%)3428(Top 421%)
21M21.00 mi1.00 mi14166+1924290+1074290+10711090(Top 42%)2925(Top 26%)2925(Top 359%)
35K21.75 mi0.75 mi14058+1084235+554235+5512001(Top 45%)3437(Top 30%)3437(Top 422%)
23M23.00 mi1.25 mi13876+1824148+874148+8711495(Top 43%)3257(Top 29%)3257(Top 400%)
24M24.00 mi1.00 mi13741+1354096+524096+5211159(Top 42%)3183(Top 28%)3183(Top 391%)
40K24.85 mi0.85 mi13605+1364024+724024+7210938(Top 41%)3124(Top 27%)3124(Top 383%)
25.2M25.20 mi0.35 mi13526+793984+403984+409994(Top 38%)2710(Top 24%)2710(Top 333%)
Finish26.22 mi1.02 mi13368+1583914+703914+7010147(Top 38%)2778(Top 24%)2778(Top 341%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14991

Females

4672

F55-59

4672

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14800

Females

4544

F55-59

4544

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14991

Females

4672

F55-59

4672

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14548

Females

4428

F55-59

4428

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15341

Females

4875

F55-59

4875

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14186

Females

4326

F55-59

4326

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

13335

Females

3940

F55-59

3940

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12246

Females

3428

F55-59

3428

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11090

Females

2925

F55-59

2925

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12001

Females

3437

F55-59

3437

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11495

Females

3257

F55-59

3257

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11159

Females

3183

F55-59

3183

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10938

Females

3124

F55-59

3124

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

9994

Females

2710

F55-59

2710

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10147

Females

2778

F55-59

2778

Passing Analysis

Category:
Athletes Passed
3018
Passed By
569
Net Change
+2449
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15817
5K → 10K651116+535#15817#15282
10K → 15K241125+116#15282#15166
15K → 20K278108+170#15166#14996
20K → Half3541-6#14996#15002
Half → 25K20946+163#15002#14839
25K → 30K32142+279#14839#14560
30K → 20M21816+202#14560#14358
20M → 21M2019+192#14358#14166
21M → 35K11810+108#14166#14058
35K → 23M19311+182#14058#13876
23M → 24M15318+135#13876#13741
24M → 40K14610+136#13741#13605
40K → 25.2M790+79#13605#13526
25.2M → Finish17517+158#13526#13368
TOTALS3018569+2449
📊

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