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BOSTON MARATHON 2023

Dafne Celis

Bib: 18356•F

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

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
8:21/mi
25:56
↑ 97↓ 3451.5%
10K· 6.21 mi
8:25/mi
52:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:18:58
↑ 67↓ 78
20K· 12.43 mi
9:00/mi
1:46:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:56/mi
1:53:01
↑ 19↓ 370.5%
25K· 15.53 mi
9:13/mi
2:15:23
↑ 66↓ 880.2%
30K· 18.64 mi
10:02/mi
2:46:33
↑ 181↓ 1480.2%
20M
10:09/mi
3:00:20
↑ 64↓ 500.2%
21M
10:54/mi
3:11:14
↑ 106↓ 241.6%
35K· 21.75 mi
10:16/mi
3:18:55
↑ 17↓ 861.7%
23M
10:29/mi
3:32:03
↑ 23↓ 630.6%
24M
10:11/mi
3:42:14
↓ 821.3%
40K· 24.85 mi
10:25/mi
3:51:08
↓ 200.3%
25.2M
11:16/mi
3:55:01
↑ 13↓ 160.2%
Finish· 26.22 mi
10:12/mi
4:05:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:01
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:12:24
Pace10:06 /mi
📊Positive Split: 17.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1025:568:2125:56
8:21
-
10K
6.21 mi11:43:2052:068:2326:10
8:25
+0:04
15K
9.32 mi12:10:121:18:588:2826:52
8:39
+0:14
20K
12.43 mi12:38:091:46:558:3627:57
9:00
+0:21
Half
13.11 mi12:44:151:53:018:376:06
8:56
-0:04
25K
15.53 mi13:06:372:15:238:4322:22
9:13
+0:17
30K
18.64 mi13:37:472:46:338:5631:10
10:02
+0:49
20M
20.00 mi13:51:343:00:209:0113:47
10:09
+0:07
21M
21.00 mi14:02:283:11:149:0610:54
10:54
+0:45
35K
21.75 mi14:10:093:18:559:097:41
10:16
-0:38
23M
23.00 mi14:23:173:32:039:1313:08
10:29
+0:13
24M
24.00 mi14:33:283:42:149:1610:11
10:11
-0:18
40K
24.85 mi14:42:223:51:089:188:54
10:25
+0:14
25.2M
25.20 mi14:46:153:55:019:203:53
11:16
+0:51
Finish
26.22 mi14:56:394:05:259:2210:24
10:12
-1:04

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

8:21 /mi

Average Pace

9:22 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:23

55% of race

Time at Steady Pace

1:35:15

39% of race

Time at Slower Pace

14:47

6% of race

Average Pace: 9:22 /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 mi11:17:1025:568:2125:56
8:21
#16496
10K
6.21 mi11:43:2052:068:2326:10
8:25
#17118
15K
9.32 mi12:10:121:18:588:2826:52
8:39
#17679
20K
12.43 mi12:38:091:46:558:3627:57
9:00
#18227
Half
13.11 mi12:44:151:53:018:376:06
8:56
#18332
25K
15.53 mi13:06:372:15:238:4322:22
9:13
#18664
30K
18.64 mi13:37:472:46:338:5631:10
10:02
#19283
20M
20.00 mi13:51:343:00:209:0113:47
10:09
#19449
21M
21.00 mi14:02:283:11:149:0610:54
10:54
#19535
35K
21.75 mi14:10:093:18:559:097:41
10:16
#19661
23M
23.00 mi14:23:173:32:039:1313:08
10:29
#19809
24M
24.00 mi14:33:283:42:149:1610:11
10:11
#19903
40K
24.85 mi14:42:223:51:089:188:54
10:25
#19981
25.2M
25.20 mi14:46:153:55:019:203:53
11:16
#19998
Finish
26.22 mi14:56:394:05:259:2210:24
10:12
#20079
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi164965605560518731(Top 70%)6948(Top 61%)6948(Top 142%)
10K6.21 mi3.10 mi17118-6226001-3966001-39617750(Top 67%)6345(Top 56%)6345(Top 130%)
15K9.32 mi3.11 mi17679-5616326-3256326-32518731(Top 70%)6948(Top 61%)6948(Top 142%)
20K12.43 mi3.11 mi18227-5486646-3206646-32019694(Top 74%)7495(Top 66%)7495(Top 153%)
Half13.11 mi0.68 mi18332-1056707-616707-6120228(Top 76%)7799(Top 68%)7799(Top 160%)
25K15.53 mi2.42 mi18664-3326934-2276934-22719943(Top 75%)7658(Top 67%)7658(Top 157%)
30K18.64 mi3.11 mi19283-6197305-3717305-37121118(Top 79%)8412(Top 74%)8412(Top 172%)
20M20.00 mi1.36 mi19449-1667421-1167421-11620867(Top 78%)8335(Top 73%)8335(Top 171%)
21M21.00 mi1.00 mi19535-867482-617482-6120607(Top 77%)8243(Top 72%)8243(Top 169%)
35K21.75 mi0.75 mi19661-1267553-717553-7121932(Top 82%)9011(Top 79%)9011(Top 185%)
23M23.00 mi1.25 mi19809-1487654-1017654-10121297(Top 80%)8679(Top 76%)8679(Top 178%)
24M24.00 mi1.00 mi19903-947715-617715-6121293(Top 80%)8718(Top 76%)8718(Top 179%)
40K24.85 mi0.85 mi19981-787776-617776-6121009(Top 79%)8608(Top 75%)8608(Top 176%)
25.2M25.20 mi0.35 mi19998-177789-137789-1321059(Top 79%)8618(Top 75%)8618(Top 176%)
Finish26.22 mi1.02 mi20079-817845-567845-5622318(Top 84%)9283(Top 81%)9283(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18731

Females

6948

F18-39

6948

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17750

Females

6345

F18-39

6345

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18731

Females

6948

F18-39

6948

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19694

Females

7495

F18-39

7495

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20228

Females

7799

F18-39

7799

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

19943

Females

7658

F18-39

7658

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

21118

Females

8412

F18-39

8412

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

20867

Females

8335

F18-39

8335

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20607

Females

8243

F18-39

8243

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21932

Females

9011

F18-39

9011

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21297

Females

8679

F18-39

8679

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21293

Females

8718

F18-39

8718

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21009

Females

8608

F18-39

8608

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21059

Females

8618

F18-39

8618

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22318

Females

9283

F18-39

9283

Passing Analysis

Category:
Athletes Passed
576
Passed By
4159
Net Change
-3583
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16496
5K → 10K110732-622#16496#17118
10K → 15K67628-561#17118#17679
15K → 20K58606-548#17679#18227
20K → Half8113-105#18227#18332
Half → 25K54386-332#18332#18664
25K → 30K46665-619#18664#19283
30K → 20M45211-166#19283#19449
20M → 21M54140-86#19449#19535
21M → 35K11137-126#19535#19661
35K → 23M34182-148#19661#19809
23M → 24M28122-94#19809#19903
24M → 40K29107-78#19903#19981
40K → 25.2M1229-17#19981#19998
25.2M → Finish20101-81#19998#20079
TOTALS5764159-3583
📊

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