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BOSTON MARATHON 2023

Melanie Pozdol

Bib: 10056•F

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Division (F18-39)
#0 / 4884
Top 30%
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
7:52/mi
24:25
↑ 97↓ 3451.5%
10K· 6.21 mi
7:46/mi
48:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:41/mi
1:12:25
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:36:17
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:41:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
2:00:15
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:24:05
↑ 181↓ 1480.2%
20M
7:33/mi
2:34:21
↑ 64↓ 500.2%
21M
7:52/mi
2:42:13
↑ 106↓ 241.6%
35K· 21.75 mi
7:06/mi
2:47:32
↑ 17↓ 861.7%
23M
7:41/mi
2:57:09
↑ 23↓ 630.6%
24M
7:27/mi
3:04:36
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:11:11
↓ 200.3%
25.2M
8:25/mi
3:14:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:33/mi
3:21:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:41:26
Pace7:44 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:40:21
Pace7:39 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:4624:257:5224:25
7:52
-
10K
6.21 mi11:18:5548:347:4924:09
7:46
-0:06
15K
9.32 mi11:42:461:12:257:4623:51
7:41
-0:05
20K
12.43 mi12:06:381:36:177:4523:52
7:41
0:00
Half
13.11 mi12:11:471:41:267:445:09
7:33
-0:08
25K
15.53 mi12:30:362:00:157:4418:49
7:46
+0:13
30K
18.64 mi12:54:262:24:057:4423:50
7:40
-0:06
20M
20.00 mi13:04:422:34:217:4310:16
7:33
-0:07
21M
21.00 mi13:12:342:42:137:437:52
7:52
+0:19
35K
21.75 mi13:17:532:47:327:425:19
7:06
-0:46
23M
23.00 mi13:27:302:57:097:429:37
7:41
+0:35
24M
24.00 mi13:34:573:04:367:427:27
7:27
-0:14
40K
24.85 mi13:41:323:11:117:426:35
7:42
+0:15
25.2M
25.20 mi13:44:263:14:057:422:54
8:25
+0:43
Finish
26.22 mi13:52:083:21:477:427:42
7:33
-0:52

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

7:06 /mi

Average Pace

7:42 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:36

83% of race

Time at Steady Pace

32:17

16% of race

Time at Slower Pace

2:54

1% of race

Average Pace: 7:42 /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 mi10:54:4624:257:5224:25
7:52
#12919
10K
6.21 mi11:18:5548:347:4924:09
7:46
#12850
15K
9.32 mi11:42:461:12:257:4623:51
7:41
#12392
20K
12.43 mi12:06:381:36:177:4523:52
7:41
#11942
Half
13.11 mi12:11:471:41:267:445:09
7:33
#11873
25K
15.53 mi12:30:362:00:157:4418:49
7:46
#11630
30K
18.64 mi12:54:262:24:057:4423:50
7:40
#10997
20M
20.00 mi13:04:422:34:217:4310:16
7:33
#10701
21M
21.00 mi13:12:342:42:137:437:52
7:52
#10423
35K
21.75 mi13:17:532:47:327:425:19
7:06
#10228
23M
23.00 mi13:27:302:57:097:429:37
7:41
#10017
24M
24.00 mi13:34:573:04:367:427:27
7:27
#9871
40K
24.85 mi13:41:323:11:117:426:35
7:42
#9773
25.2M
25.20 mi13:44:263:14:057:422:54
8:25
#9738
Finish
26.22 mi13:52:083:21:477:427:42
7:33
#9663
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi129193390339011651(Top 44%)2702(Top 24%)2702(Top 55%)
10K6.21 mi3.10 mi12850+693342+483342+4812892(Top 48%)3365(Top 29%)3365(Top 69%)
15K9.32 mi3.11 mi12392+4583116+2263116+22611651(Top 44%)2702(Top 24%)2702(Top 55%)
20K12.43 mi3.11 mi11942+4502878+2382878+23810782(Top 41%)2300(Top 20%)2300(Top 47%)
Half13.11 mi0.68 mi11873+692840+382840+3810653(Top 40%)2191(Top 19%)2191(Top 45%)
25K15.53 mi2.42 mi11630+2432714+1262714+12610795(Top 41%)2380(Top 21%)2380(Top 49%)
30K18.64 mi3.11 mi10997+6332404+3102404+3108457(Top 32%)1493(Top 13%)1493(Top 31%)
20M20.00 mi1.36 mi10701+2962283+1212283+1217233(Top 27%)1125(Top 10%)1125(Top 23%)
21M21.00 mi1.00 mi10423+2782160+1232160+1236593(Top 25%)990(Top 9%)990(Top 20%)
35K21.75 mi0.75 mi10228+1952075+852075+856014(Top 23%)784(Top 7%)784(Top 16%)
23M23.00 mi1.25 mi10017+2112000+752000+757648(Top 29%)1436(Top 13%)1436(Top 29%)
24M24.00 mi1.00 mi9871+1461969+311969+317406(Top 28%)1453(Top 13%)1453(Top 30%)
40K24.85 mi0.85 mi9773+981957+121957+128016(Top 30%)1754(Top 15%)1754(Top 36%)
25.2M25.20 mi0.35 mi9738+351947+101947+109023(Top 34%)2249(Top 20%)2249(Top 46%)
Finish26.22 mi1.02 mi9663+751946+11946+18984(Top 34%)2235(Top 20%)2235(Top 46%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11651

Females

2702

F18-39

2702

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12892

Females

3365

F18-39

3365

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11651

Females

2702

F18-39

2702

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10782

Females

2300

F18-39

2300

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10653

Females

2191

F18-39

2191

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10795

Females

2380

F18-39

2380

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8457

Females

1493

F18-39

1493

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7233

Females

1125

F18-39

1125

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6593

Females

990

F18-39

990

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6014

Females

784

F18-39

784

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7648

Females

1436

F18-39

1436

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7406

Females

1453

F18-39

1453

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8016

Females

1754

F18-39

1754

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9023

Females

2249

F18-39

2249

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

8984

Females

2235

F18-39

2235

Passing Analysis

Category:
Athletes Passed
3741*
Passed By
485
Net Change
+3256
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12919
5K → 10K345276+69#12919#12850
10K → 15K51254+458#12850#12392
15K → 20K46818+450#12392#11942
20K → Half756+69#11942#11873
Half → 25K27633+243#11873#11630
25K → 30K6385+633#11630#10997
30K → 20M297*1+296#10997#10701
20M → 21M2791+278#10701#10423
21M → 35K1950+195#10423#10228
35K → 23M215*4+211#10228#10017
23M → 24M16115+146#10017#9871
24M → 40K122*24+98#9871#9773
40K → 25.2M5015+35#9773#9738
25.2M → Finish108*33+75#9738#9663
TOTALS3741*485+3256

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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