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BOSTON MARATHON 2023

Lynn Stiff

Bib: 16860•F

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 30%
Division (F18-39)
#0 / 4884
Top 48%
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
7:47/mi
24:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
48:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:12:13
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:36:32
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:41:55
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
2:01:10
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:26:39
↑ 181↓ 1480.2%
20M
8:29/mi
2:38:11
↑ 64↓ 500.2%
21M
9:10/mi
2:47:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:53:34
↑ 17↓ 861.7%
23M
8:38/mi
3:04:22
↑ 23↓ 630.6%
24M
8:14/mi
3:12:36
↓ 821.3%
40K· 24.85 mi
8:25/mi
3:19:48
↓ 200.3%
25.2M
8:45/mi
3:22:49
↑ 13↓ 160.2%
Finish· 26.22 mi
8:07/mi
3:31:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:55
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:49:10
Pace8:20 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2124:107:4724:10
7:47
-
10K
6.21 mi11:38:2348:127:4524:02
7:44
-0:03
15K
9.32 mi12:02:241:12:137:4524:01
7:44
0:00
20K
12.43 mi12:26:431:36:327:4624:19
7:50
+0:06
Half
13.11 mi12:32:061:41:557:465:23
7:53
+0:03
25K
15.53 mi12:51:212:01:107:4819:15
7:56
+0:03
30K
18.64 mi13:16:502:26:397:5225:29
8:12
+0:16
20M
20.00 mi13:28:222:38:117:5511:32
8:29
+0:17
21M
21.00 mi13:37:322:47:217:589:10
9:10
+0:41
35K
21.75 mi13:43:452:53:347:596:13
8:19
-0:51
23M
23.00 mi13:54:333:04:228:0110:48
8:38
+0:19
24M
24.00 mi14:02:473:12:368:028:14
8:14
-0:24
40K
24.85 mi14:09:593:19:488:027:12
8:25
+0:11
25.2M
25.20 mi14:13:003:22:498:033:01
8:45
+0:20
Finish
26.22 mi14:21:163:31:058:038:16
8:07
-0:38

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

7:44 /mi

Average Pace

8:03 /mi

Slowest Pace

9:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:06

89% of race

Time at Steady Pace

13:49

7% of race

Time at Slower Pace

9:10

4% of race

Average Pace: 8:03 /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 mi11:14:2124:107:4724:10
7:47
#12177
10K
6.21 mi11:38:2348:127:4524:02
7:44
#12344
15K
9.32 mi12:02:241:12:137:4524:01
7:44
#12210
20K
12.43 mi12:26:431:36:327:4624:19
7:50
#12108
Half
13.11 mi12:32:061:41:557:465:23
7:53
#12184
25K
15.53 mi12:51:212:01:107:4819:15
7:56
#12176
30K
18.64 mi13:16:502:26:397:5225:29
8:12
#12189
20M
20.00 mi13:28:222:38:117:5511:32
8:29
#12287
21M
21.00 mi13:37:322:47:217:589:10
9:10
#12399
35K
21.75 mi13:43:452:53:347:596:13
8:19
#12476
23M
23.00 mi13:54:333:04:228:0110:48
8:38
#12563
24M
24.00 mi14:02:473:12:368:028:14
8:14
#12576
40K
24.85 mi14:09:593:19:488:027:12
8:25
#12583
25.2M
25.20 mi14:13:003:22:498:033:01
8:45
#12553
Finish
26.22 mi14:21:163:31:058:038:16
8:07
#12564
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi121772967296712125(Top 46%)2967(Top 26%)2967(Top 61%)
10K6.21 mi3.10 mi12344-1673068-1013068-10112571(Top 47%)3191(Top 28%)3191(Top 65%)
15K9.32 mi3.11 mi12210+1343014+543014+5412125(Top 46%)2967(Top 26%)2967(Top 61%)
20K12.43 mi3.11 mi12108+1022981+332981+3311981(Top 45%)2964(Top 26%)2964(Top 61%)
Half13.11 mi0.68 mi12184-763029-483029-4813538(Top 51%)3814(Top 33%)3814(Top 78%)
25K15.53 mi2.42 mi12176+83037-83037-812243(Top 46%)3221(Top 28%)3221(Top 66%)
30K18.64 mi3.11 mi12189-133086-493086-4912369(Top 46%)3396(Top 30%)3396(Top 70%)
20M20.00 mi1.36 mi12287-983153-673153-6713555(Top 51%)4144(Top 36%)4144(Top 85%)
21M21.00 mi1.00 mi12399-1123232-793232-7914310(Top 54%)4658(Top 41%)4658(Top 95%)
35K21.75 mi0.75 mi12476-773300-683300-6814155(Top 53%)4635(Top 41%)4635(Top 95%)
23M23.00 mi1.25 mi12563-873363-633363-6313941(Top 52%)4574(Top 40%)4574(Top 94%)
24M24.00 mi1.00 mi12576-133397-343397-3412848(Top 48%)4047(Top 35%)4047(Top 83%)
40K24.85 mi0.85 mi12583-73420-233420-2312856(Top 48%)4129(Top 36%)4129(Top 85%)
25.2M25.20 mi0.35 mi12553+303409+113409+1111101(Top 42%)3259(Top 29%)3259(Top 67%)
Finish26.22 mi1.02 mi12564-113445-363445-3612874(Top 48%)4145(Top 36%)4145(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12125

Females

2967

F18-39

2967

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12571

Females

3191

F18-39

3191

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12125

Females

2967

F18-39

2967

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11981

Females

2964

F18-39

2964

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13538

Females

3814

F18-39

3814

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

12243

Females

3221

F18-39

3221

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12369

Females

3396

F18-39

3396

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13555

Females

4144

F18-39

4144

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

14310

Females

4658

F18-39

4658

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14155

Females

4635

F18-39

4635

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13941

Females

4574

F18-39

4574

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12848

Females

4047

F18-39

4047

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12856

Females

4129

F18-39

4129

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11101

Females

3259

F18-39

3259

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12874

Females

4145

F18-39

4145

Passing Analysis

Category:
Athletes Passed
1502
Passed By
1889
Net Change
-387
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12177
5K → 10K239406-167#12177#12344
10K → 15K260126+134#12344#12210
15K → 20K217115+102#12210#12108
20K → Half1086-76#12108#12184
Half → 25K129121+8#12184#12176
25K → 30K196209-13#12176#12189
30K → 20M69167-98#12189#12287
20M → 21M59171-112#12287#12399
21M → 35K29106-77#12399#12476
35K → 23M60147-87#12476#12563
23M → 24M7083-13#12563#12576
24M → 40K4754-7#12576#12583
40K → 25.2M4212+30#12583#12553
25.2M → Finish7586-11#12553#12564
TOTALS15021889-387
📊

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