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BOSTON MARATHON 2023

Emily Ullmann

Bib: 3528•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 8%
Division (F18-39)
#0 / 4884
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:57
Rank: #8734
Start → 5K
22:57 | 7:23/mi
10K· 6.21 mi
45:51
Rank: #9027 (-293)
5K → 10K
22:54 | 7:22/mi
15K· 9.32 mi
1:09:05
Rank: #9292 (-265)
10K → 15K
23:14 | 7:29/mi
20K· 12.43 mi
1:32:06
Rank: #9090 (+202)
15K → 20K
23:01 | 7:25/mi
Half· 13.11 mi
1:37:07
Rank: #9083 (+7)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:55:15
Rank: #8973 (+110)
Half → 25K
18:08 | 7:29/mi
30K· 18.64 mi
2:18:38
Rank: #8659 (+314)
25K → 30K
23:23 | 7:32/mi
20M
2:28:40
Rank: #8421 (+238)
30K → 20M
10:02 | 7:23/mi
21M
2:36:11
Rank: #8172 (+249)
20M → 21M
7:31 | 7:31/mi
35K· 21.75 mi
2:41:28
Rank: #8049 (+123)
21M → 35K
5:17 | 7:04/mi
23M
2:50:17
Rank: #7713 (+336)
35K → 23M
8:49 | 7:03/mi
24M
2:57:15
Rank: #7513 (+200)
23M → 24M
6:58 | 6:58/mi
40K· 24.85 mi
3:03:12
Rank: #7335 (+178)
24M → 40K
5:57 | 6:58/mi
25.2M
3:05:44
Rank: #7246 (+89)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
3:12:38
Rank: #7046 (+200)
25.2M → Finish
6:54 | 6:46/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:07
Pace7:24 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:35:31
Pace7:17 /mi
📊Negative Split: 1.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:4322:577:2322:57
7:23
-
10K
6.21 mi10:50:3745:517:2322:54
7:22
-0:01
15K
9.32 mi11:13:511:09:057:2523:14
7:29
+0:07
20K
12.43 mi11:36:521:32:067:2523:01
7:25
-0:04
Half
13.11 mi11:41:531:37:077:245:01
7:21
-0:04
25K
15.53 mi12:00:011:55:157:2518:08
7:29
+0:08
30K
18.64 mi12:23:242:18:387:2623:23
7:32
+0:03
20M
20.00 mi12:33:262:28:407:2610:02
7:23
-0:09
21M
21.00 mi12:40:572:36:117:267:31
7:31
+0:08
35K
21.75 mi12:46:142:41:287:255:17
7:04
-0:27
23M
23.00 mi12:55:032:50:177:248:49
7:03
-0:01
24M
24.00 mi13:02:012:57:157:236:58
6:58
-0:05
40K
24.85 mi13:07:583:03:127:225:57
6:58
0:00
25.2M
25.20 mi13:10:303:05:447:222:32
7:21
+0:23
Finish
26.22 mi13:17:243:12:387:216:54
6:46
-0:35

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

6:46 /mi

Average Pace

7:21 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:22

62% of race

Time at Steady Pace

1:12:16

38% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi10:27:4322:577:2322:57
7:23
#8734
10K
6.21 mi10:50:3745:517:2322:54
7:22
#9027
15K
9.32 mi11:13:511:09:057:2523:14
7:29
#9292
20K
12.43 mi11:36:521:32:067:2523:01
7:25
#9090
Half
13.11 mi11:41:531:37:077:245:01
7:21
#9083
25K
15.53 mi12:00:011:55:157:2518:08
7:29
#8973
30K
18.64 mi12:23:242:18:387:2623:23
7:32
#8659
20M
20.00 mi12:33:262:28:407:2610:02
7:23
#8421
21M
21.00 mi12:40:572:36:117:267:31
7:31
#8172
35K
21.75 mi12:46:142:41:287:255:17
7:04
#8049
23M
23.00 mi12:55:032:50:177:248:49
7:03
#7713
24M
24.00 mi13:02:012:57:157:236:58
6:58
#7513
40K
24.85 mi13:07:583:03:127:225:57
6:58
#7335
25.2M
25.20 mi13:10:303:05:447:222:32
7:21
#7246
Finish
26.22 mi13:17:243:12:387:216:54
6:46
#7046
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi87341284128410000(Top 38%)1835(Top 16%)1835(Top 38%)
10K6.21 mi3.10 mi9027-2931427-1431427-1439396(Top 35%)1579(Top 14%)1579(Top 32%)
15K9.32 mi3.11 mi9292-2651539-1121539-11210000(Top 38%)1835(Top 16%)1835(Top 38%)
20K12.43 mi3.11 mi9090+2021473+661473+668582(Top 32%)1325(Top 12%)1325(Top 27%)
Half13.11 mi0.68 mi9083+7147314739051(Top 34%)1475(Top 13%)1475(Top 30%)
25K15.53 mi2.42 mi8973+1101433+401433+408624(Top 32%)1388(Top 12%)1388(Top 28%)
30K18.64 mi3.11 mi8659+3141359+741359+747409(Top 28%)1071(Top 9%)1071(Top 22%)
20M20.00 mi1.36 mi8421+2381292+671292+676125(Top 23%)739(Top 6%)739(Top 15%)
21M21.00 mi1.00 mi8172+2491219+731219+734702(Top 18%)453(Top 4%)453(Top 9%)
35K21.75 mi0.75 mi8049+1231183+361183+365744(Top 22%)690(Top 6%)690(Top 14%)
23M23.00 mi1.25 mi7713+3361072+1111072+1114016(Top 15%)322(Top 3%)322(Top 7%)
24M24.00 mi1.00 mi7513+2001032+401032+404542(Top 17%)453(Top 4%)453(Top 9%)
40K24.85 mi0.85 mi7335+178986+46986+463672(Top 14%)355(Top 3%)355(Top 7%)
25.2M25.20 mi0.35 mi7246+89965+21965+213273(Top 12%)303(Top 3%)303(Top 6%)
Finish26.22 mi1.02 mi7046+200926+39926+393946(Top 15%)453(Top 4%)453(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10000

Females

1835

F18-39

1835

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9396

Females

1579

F18-39

1579

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10000

Females

1835

F18-39

1835

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8582

Females

1325

F18-39

1325

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9051

Females

1475

F18-39

1475

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8624

Females

1388

F18-39

1388

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7409

Females

1071

F18-39

1071

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6125

Females

739

F18-39

739

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4702

Females

453

F18-39

453

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

5744

Females

690

F18-39

690

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4016

Females

322

F18-39

322

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4542

Females

453

F18-39

453

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3672

Females

355

F18-39

355

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3273

Females

303

F18-39

303

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

3946

Females

453

F18-39

453

Passing Analysis

Category:
Athletes Passed
2639
Passed By
951
Net Change
+1688
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8734
5K → 10K159452-293#8734#9027
10K → 15K64329-265#9027#9292
15K → 20K24947+202#9292#9090
20K → Half2720+7#9090#9083
Half → 25K16050+110#9083#8973
25K → 30K34430+314#8973#8659
30K → 20M2468+238#8659#8421
20M → 21M2512+249#8421#8172
21M → 35K1285+123#8172#8049
35K → 23M3360+336#8049#7713
23M → 24M2022+200#7713#7513
24M → 40K1791+178#7513#7335
40K → 25.2M890+89#7335#7246
25.2M → Finish2055+200#7246#7046
TOTALS2639951+1688
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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