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BOSTON MARATHON 2023

Andrea Zmaj

Bib: 14188•F

GA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Division (F18-39)
#0 / 4884
Top 36%
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
7:36/mi
23:38
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
46:53
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:10:06
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:33:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:38:42
↑ 19↓ 370.5%
25K· 15.53 mi
7:47/mi
1:57:35
↑ 66↓ 880.2%
30K· 18.64 mi
7:57/mi
2:22:18
↑ 181↓ 1480.2%
20M
8:01/mi
2:33:11
↑ 64↓ 500.2%
21M
8:39/mi
2:41:50
↑ 106↓ 241.6%
35K· 21.75 mi
7:49/mi
2:47:41
↑ 17↓ 861.7%
23M
8:14/mi
2:57:59
↑ 23↓ 630.6%
24M
8:05/mi
3:06:04
↓ 821.3%
40K· 24.85 mi
8:29/mi
3:13:19
↓ 200.3%
25.2M
8:39/mi
3:16:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:24:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:42
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:45:57
Pace8:05 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5723:387:3623:38
7:36
-
10K
6.21 mi11:16:1246:537:3323:15
7:29
-0:07
15K
9.32 mi11:39:251:10:067:3123:13
7:28
-0:01
20K
12.43 mi12:02:571:33:387:3223:32
7:34
+0:06
Half
13.11 mi12:08:011:38:427:325:04
7:26
-0:08
25K
15.53 mi12:26:541:57:357:3418:53
7:47
+0:21
30K
18.64 mi12:51:372:22:187:3824:43
7:57
+0:10
20M
20.00 mi13:02:302:33:117:4010:53
8:01
+0:04
21M
21.00 mi13:11:092:41:507:428:39
8:39
+0:38
35K
21.75 mi13:17:002:47:417:435:51
7:49
-0:50
23M
23.00 mi13:27:182:57:597:4410:18
8:14
+0:25
24M
24.00 mi13:35:233:06:047:458:05
8:05
-0:09
40K
24.85 mi13:42:383:13:197:477:15
8:29
+0:24
25.2M
25.20 mi13:45:373:16:187:472:59
8:39
+0:10
Finish
26.22 mi13:53:583:24:397:498:21
8:12
-0:27

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

7:26 /mi

Average Pace

7:49 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:07

82% of race

Time at Steady Pace

37:32

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi10:52:5723:387:3623:38
7:36
#10609
10K
6.21 mi11:16:1246:537:3323:15
7:29
#10434
15K
9.32 mi11:39:251:10:067:3123:13
7:28
#10253
20K
12.43 mi12:02:571:33:387:3223:32
7:34
#10139
Half
13.11 mi12:08:011:38:427:325:04
7:26
#10099
25K
15.53 mi12:26:541:57:357:3418:53
7:47
#10221
30K
18.64 mi12:51:372:22:187:3824:43
7:57
#10240
20M
20.00 mi13:02:302:33:117:4010:53
8:01
#10234
21M
21.00 mi13:11:092:41:507:428:39
8:39
#10276
35K
21.75 mi13:17:002:47:417:435:51
7:49
#10282
23M
23.00 mi13:27:182:57:597:4410:18
8:14
#10315
24M
24.00 mi13:35:233:06:047:458:05
8:05
#10366
40K
24.85 mi13:42:383:13:197:477:15
8:29
#10466
25.2M
25.20 mi13:45:373:16:187:472:59
8:39
#10451
Finish
26.22 mi13:53:583:24:397:498:21
8:12
#10550
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10609214221429969(Top 37%)1829(Top 16%)1829(Top 37%)
10K6.21 mi3.10 mi10434+1752043+992043+9910334(Top 39%)1977(Top 17%)1977(Top 40%)
15K9.32 mi3.11 mi10253+1811938+1051938+1059969(Top 37%)1829(Top 16%)1829(Top 37%)
20K12.43 mi3.11 mi10139+1141893+451893+459923(Top 37%)1882(Top 16%)1882(Top 39%)
Half13.11 mi0.68 mi10099+401882+111882+119704(Top 36%)1775(Top 16%)1775(Top 36%)
25K15.53 mi2.42 mi10221-1221962-801962-8011014(Top 41%)2491(Top 22%)2491(Top 51%)
30K18.64 mi3.11 mi10240-192017-552017-5510549(Top 40%)2413(Top 21%)2413(Top 49%)
20M20.00 mi1.36 mi10234+62039-222039-2210352(Top 39%)2398(Top 21%)2398(Top 49%)
21M21.00 mi1.00 mi10276-422085-462085-4611361(Top 43%)3059(Top 27%)3059(Top 63%)
35K21.75 mi0.75 mi10282-62103-182103-1810833(Top 41%)2785(Top 24%)2785(Top 57%)
23M23.00 mi1.25 mi10315-332155-522155-5211375(Top 43%)3190(Top 28%)3190(Top 65%)
24M24.00 mi1.00 mi10366-512209-542209-5411833(Top 44%)3495(Top 31%)3495(Top 72%)
40K24.85 mi0.85 mi10466-1002294-852294-8513203(Top 50%)4301(Top 38%)4301(Top 88%)
25.2M25.20 mi0.35 mi10451+152297-32297-310496(Top 39%)2922(Top 26%)2922(Top 60%)
Finish26.22 mi1.02 mi10550-992374-772374-7713396(Top 50%)4400(Top 39%)4400(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9969

Females

1829

F18-39

1829

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10334

Females

1977

F18-39

1977

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9969

Females

1829

F18-39

1829

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

9923

Females

1882

F18-39

1882

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9704

Females

1775

F18-39

1775

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11014

Females

2491

F18-39

2491

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10549

Females

2413

F18-39

2413

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10352

Females

2398

F18-39

2398

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

11361

Females

3059

F18-39

3059

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

10833

Females

2785

F18-39

2785

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11375

Females

3190

F18-39

3190

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11833

Females

3495

F18-39

3495

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13203

Females

4301

F18-39

4301

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10496

Females

2922

F18-39

2922

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13396

Females

4400

F18-39

4400

Passing Analysis

Category:
Athletes Passed
1640*
Passed By
1581
Net Change
+59
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10609
5K → 10K386*211+175#10609#10434
10K → 15K295114+181#10434#10253
15K → 20K213*99+114#10253#10139
20K → Half58*18+40#10139#10099
Half → 25K87209-122#10099#10221
25K → 30K151*170-19#10221#10240
30K → 20M89*83+6#10240#10234
20M → 21M68110-42#10234#10276
21M → 35K4652-6#10276#10282
35K → 23M77110-33#10282#10315
23M → 24M4192-51#10315#10366
24M → 40K46146-100#10366#10466
40K → 25.2M3621+15#10466#10451
25.2M → Finish47146-99#10451#10550
TOTALS1640*1581+59

* 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