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BOSTON MARATHON 2023

Megan Olshanski

Bib: 15221•F

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 14%
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
7:29/mi
23:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
45:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:12/mi
1:08:09
↑ 67↓ 78
20K· 12.43 mi
7:13/mi
1:30:34
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:35:29
↑ 19↓ 370.5%
25K· 15.53 mi
7:10/mi
1:52:52
↑ 66↓ 880.2%
30K· 18.64 mi
7:23/mi
2:15:48
↑ 181↓ 1480.2%
20M
7:18/mi
2:25:43
↑ 64↓ 500.2%
21M
7:54/mi
2:33:37
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:38:49
↑ 17↓ 861.7%
23M
7:30/mi
2:48:13
↑ 23↓ 630.6%
24M
7:12/mi
2:55:25
↓ 821.3%
40K· 24.85 mi
7:30/mi
3:01:50
↓ 200.3%
25.2M
7:47/mi
3:04:31
↑ 13↓ 160.2%
Finish· 26.22 mi
7:01/mi
3:11:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:35:29
Pace7:17 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:36:11
Pace7:20 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0523:147:2923:14
7:29
-
10K
6.21 mi11:15:3845:477:2222:33
7:15
-0:14
15K
9.32 mi11:38:001:08:097:1922:22
7:12
-0:03
20K
12.43 mi12:00:251:30:347:1722:25
7:13
+0:01
Half
13.11 mi12:05:201:35:297:174:55
7:12
-0:01
25K
15.53 mi12:22:431:52:527:1617:23
7:10
-0:02
30K
18.64 mi12:45:392:15:487:1722:56
7:23
+0:13
20M
20.00 mi12:55:342:25:437:179:55
7:18
-0:05
21M
21.00 mi13:03:282:33:377:197:54
7:54
+0:36
35K
21.75 mi13:08:402:38:497:185:12
6:57
-0:57
23M
23.00 mi13:18:042:48:137:199:24
7:30
+0:33
24M
24.00 mi13:25:162:55:257:197:12
7:12
-0:18
40K
24.85 mi13:31:413:01:507:196:25
7:30
+0:18
25.2M
25.20 mi13:34:223:04:317:192:41
7:47
+0:17
Finish
26.22 mi13:41:313:11:407:197:09
7:01
-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

6:57 /mi

Average Pace

7:19 /mi

Slowest Pace

7:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:05

94% of race

Time at Steady Pace

10:35

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:19 /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 mi10:53:0523:147:2923:14
7:29
#9448
10K
6.21 mi11:15:3845:477:2222:33
7:15
#8958
15K
9.32 mi11:38:001:08:097:1922:22
7:12
#8546
20K
12.43 mi12:00:251:30:347:1722:25
7:13
#8162
Half
13.11 mi12:05:201:35:297:174:55
7:12
#8150
25K
15.53 mi12:22:431:52:527:1617:23
7:10
#7832
30K
18.64 mi12:45:392:15:487:1722:56
7:23
#7528
20M
20.00 mi12:55:342:25:437:179:55
7:18
#7348
21M
21.00 mi13:03:282:33:377:197:54
7:54
#7293
35K
21.75 mi13:08:402:38:497:185:12
6:57
#7188
23M
23.00 mi13:18:042:48:137:199:24
7:30
#7093
24M
24.00 mi13:25:162:55:257:197:12
7:12
#7007
40K
24.85 mi13:31:413:01:507:196:25
7:30
#6968
25.2M
25.20 mi13:34:223:04:317:192:41
7:47
#6913
Finish
26.22 mi13:41:313:11:407:197:09
7:01
#6821
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9448159315937796(Top 29%)1001(Top 9%)1001(Top 20%)
10K6.21 mi3.10 mi8958+4901391+2021391+2028543(Top 32%)1243(Top 11%)1243(Top 25%)
15K9.32 mi3.11 mi8546+4121237+1541237+1547796(Top 29%)1001(Top 9%)1001(Top 20%)
20K12.43 mi3.11 mi8162+3841102+1351102+1357206(Top 27%)844(Top 7%)844(Top 17%)
Half13.11 mi0.68 mi8150+12110211027950(Top 30%)1059(Top 9%)1059(Top 22%)
25K15.53 mi2.42 mi7832+3181016+861016+866515(Top 24%)700(Top 6%)700(Top 14%)
30K18.64 mi3.11 mi7528+304947+69947+696513(Top 24%)765(Top 7%)765(Top 16%)
20M20.00 mi1.36 mi7348+180895+52895+525647(Top 21%)612(Top 5%)612(Top 13%)
21M21.00 mi1.00 mi7293+55897-2897-26753(Top 25%)1034(Top 9%)1034(Top 21%)
35K21.75 mi0.75 mi7188+105871+26871+265111(Top 19%)537(Top 5%)537(Top 11%)
23M23.00 mi1.25 mi7093+958718716482(Top 24%)983(Top 9%)983(Top 20%)
24M24.00 mi1.00 mi7007+86864+7864+75775(Top 22%)816(Top 7%)816(Top 17%)
40K24.85 mi0.85 mi6968+39872-8872-86780(Top 25%)1265(Top 11%)1265(Top 26%)
25.2M25.20 mi0.35 mi6913+55866+6866+65354(Top 20%)846(Top 7%)846(Top 17%)
Finish26.22 mi1.02 mi6821+92847+19847+195338(Top 20%)837(Top 7%)837(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

7796

Females

1001

F18-39

1001

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8543

Females

1243

F18-39

1243

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

7796

Females

1001

F18-39

1001

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7206

Females

844

F18-39

844

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

7950

Females

1059

F18-39

1059

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6515

Females

700

F18-39

700

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6513

Females

765

F18-39

765

30K→20M

18.6 - 20.0 mi

Top 21%
×5story building
+64ft-50ft

Overall

5647

Females

612

F18-39

612

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6753

Females

1034

F18-39

1034

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5111

Females

537

F18-39

537

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6482

Females

983

F18-39

983

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

5775

Females

816

F18-39

816

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6780

Females

1265

F18-39

1265

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5354

Females

846

F18-39

846

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5338

Females

837

F18-39

837

Passing Analysis

Category:
Athletes Passed
2928
Passed By
301
Net Change
+2627
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9448
5K → 10K58494+490#9448#8958
10K → 15K43119+412#8958#8546
15K → 20K3928+384#8546#8162
20K → Half2816+12#8162#8150
Half → 25K3224+318#8150#7832
25K → 30K32622+304#7832#7528
30K → 20M1844+180#7528#7348
20M → 21M8328+55#7348#7293
21M → 35K1083+105#7293#7188
35K → 23M13237+95#7188#7093
23M → 24M10317+86#7093#7007
24M → 40K7031+39#7007#6968
40K → 25.2M561+55#6968#6913
25.2M → Finish10917+92#6913#6821
TOTALS2928301+2627
📊

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