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BOSTON MARATHON 2023

Danielle Horneff

Bib: 17249•F

NJ

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:31
Rank: #17809
Start → 5K
26:31 | 8:32/mi
10K· 6.21 mi
51:59
Rank: #16972 (+837)
5K → 10K
25:28 | 8:12/mi
15K· 9.32 mi
1:17:07
Rank: #16328 (+644)
10K → 15K
25:08 | 8:05/mi
20K· 12.43 mi
1:42:05
Rank: #15681 (+647)
15K → 20K
24:58 | 8:02/mi
Half· 13.11 mi
1:47:27
Rank: #15557 (+124)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:06:54
Rank: #15132 (+425)
Half → 25K
19:27 | 8:01/mi
30K· 18.64 mi
2:33:46
Rank: #15121 (+11)
25K → 30K
26:52 | 8:39/mi
20M
2:46:54
Rank: #15528 (-407)
30K → 20M
13:08 | 9:40/mi
21M
2:59:58
Rank: #16618 (-1090)
20M → 21M
13:04 | 13:04/mi
35K· 21.75 mi
3:08:06
Rank: #17051 (-433)
21M → 35K
8:08 | 10:52/mi
23M
3:24:04
Rank: #18164 (-1113)
35K → 23M
15:58 | 12:45/mi
24M
3:34:02
Rank: #18330 (-166)
23M → 24M
9:58 | 9:58/mi
40K· 24.85 mi
3:41:53
Rank: #18295 (+35)
24M → 40K
7:51 | 9:11/mi
25.2M
3:45:21
Rank: #18280 (+15)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:55:06
Rank: #18393 (-113)
25.2M → Finish
9:45 | 9:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:27
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time2:07:39
Pace9:44 /mi
📊Positive Split: 18.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5826:318:3226:31
8:32
-
10K
6.21 mi11:48:2651:598:2225:28
8:12
-0:20
15K
9.32 mi12:13:341:17:078:1625:08
8:05
-0:07
20K
12.43 mi12:38:321:42:058:1324:58
8:02
-0:03
Half
13.11 mi12:43:541:47:278:125:22
7:52
-0:10
25K
15.53 mi13:03:212:06:548:1019:27
8:01
+0:09
30K
18.64 mi13:30:132:33:468:1526:52
8:39
+0:38
20M
20.00 mi13:43:212:46:548:2113:08
9:40
+1:01
21M
21.00 mi13:56:252:59:588:3413:04
13:04
+3:24
35K
21.75 mi14:04:333:08:068:398:08
10:52
-2:12
23M
23.00 mi14:20:313:24:048:5215:58
12:45
+1:53
24M
24.00 mi14:30:293:34:028:559:58
9:58
-2:47
40K
24.85 mi14:38:203:41:538:567:51
9:11
-0:47
25.2M
25.20 mi14:41:483:45:218:573:28
10:03
+0:52
Finish
26.22 mi14:51:333:55:068:589:45
9:34
-0:29

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

7:52 /mi

Average Pace

8:58 /mi

Slowest Pace

13:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:23

43% of race

Time at Steady Pace

1:34:05

40% of race

Time at Slower Pace

40:38

17% of race

Average Pace: 8:58 /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 mi11:22:5826:318:3226:31
8:32
#17809
10K
6.21 mi11:48:2651:598:2225:28
8:12
#16972
15K
9.32 mi12:13:341:17:078:1625:08
8:05
#16328
20K
12.43 mi12:38:321:42:058:1324:58
8:02
#15681
Half
13.11 mi12:43:541:47:278:125:22
7:52
#15557
25K
15.53 mi13:03:212:06:548:1019:27
8:01
#15132
30K
18.64 mi13:30:132:33:468:1526:52
8:39
#15121
20M
20.00 mi13:43:212:46:548:2113:08
9:40
#15528
21M
21.00 mi13:56:252:59:588:3413:04
13:04
#16618
35K
21.75 mi14:04:333:08:068:398:08
10:52
#17051
23M
23.00 mi14:20:313:24:048:5215:58
12:45
#18164
24M
24.00 mi14:30:293:34:028:559:58
9:58
#18330
40K
24.85 mi14:38:203:41:538:567:51
9:11
#18295
25.2M
25.20 mi14:41:483:45:218:573:28
10:03
#18280
Finish
26.22 mi14:51:333:55:068:589:45
9:34
#18393
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi178096431643115113(Top 57%)4745(Top 42%)4745(Top 97%)
10K6.21 mi3.10 mi16972+8375896+5355896+53516244(Top 61%)5429(Top 48%)5429(Top 111%)
15K9.32 mi3.11 mi16328+6445486+4105486+41015113(Top 57%)4745(Top 42%)4745(Top 97%)
20K12.43 mi3.11 mi15681+6475105+3815105+38113745(Top 52%)3965(Top 35%)3965(Top 81%)
Half13.11 mi0.68 mi15557+1245035+705035+7013422(Top 50%)3771(Top 33%)3771(Top 77%)
25K15.53 mi2.42 mi15132+4254790+2454790+24512955(Top 49%)3612(Top 32%)3612(Top 74%)
30K18.64 mi3.11 mi15121+114835-454835-4515221(Top 57%)5075(Top 44%)5075(Top 104%)
20M20.00 mi1.36 mi15528-4075105-2705105-27019455(Top 73%)7546(Top 66%)7546(Top 155%)
21M21.00 mi1.00 mi16618-10905771-6665771-66624162(Top 91%)10179(Top 89%)10179(Top 208%)
35K21.75 mi0.75 mi17051-4336029-2586029-25823067(Top 87%)9621(Top 84%)9621(Top 197%)
23M23.00 mi1.25 mi18164-11136708-6796708-67924854(Top 93%)10562(Top 92%)10562(Top 216%)
24M24.00 mi1.00 mi18330-1666820-1126820-11220708(Top 78%)8388(Top 73%)8388(Top 172%)
40K24.85 mi0.85 mi18295+356812+86812+817055(Top 64%)6440(Top 56%)6440(Top 132%)
25.2M25.20 mi0.35 mi18280+156808+46808+417641(Top 66%)6768(Top 59%)6768(Top 139%)
Finish26.22 mi1.02 mi18393-1136879-716879-7120361(Top 76%)8218(Top 72%)8218(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15113

Females

4745

F18-39

4745

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

16244

Females

5429

F18-39

5429

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15113

Females

4745

F18-39

4745

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13745

Females

3965

F18-39

3965

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

13422

Females

3771

F18-39

3771

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

12955

Females

3612

F18-39

3612

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15221

Females

5075

F18-39

5075

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

19455

Females

7546

F18-39

7546

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

24162

Females

10179

F18-39

10179

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23067

Females

9621

F18-39

9621

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

24854

Females

10562

F18-39

10562

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

20708

Females

8388

F18-39

8388

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17055

Females

6440

F18-39

6440

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17641

Females

6768

F18-39

6768

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

20361

Females

8218

F18-39

8218

Passing Analysis

Category:
Athletes Passed
3183
Passed By
3767
Net Change
-584
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17809
5K → 10K93093+837#17809#16972
10K → 15K68339+644#16972#16328
15K → 20K65912+647#16328#15681
20K → Half1240+124#15681#15557
Half → 25K4305+425#15557#15132
25K → 30K191180+11#15132#15121
30K → 20M15422-407#15121#15528
20M → 21M51095-1090#15528#16618
21M → 35K7440-433#16618#17051
35K → 23M21115-1113#17051#18164
23M → 24M21187-166#18164#18330
24M → 40K6429+35#18330#18295
40K → 25.2M3318+15#18295#18280
25.2M → Finish19132-113#18280#18393
TOTALS31833767-584
📊

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