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BOSTON MARATHON 2023

Christina Pierce

Bib: 25557•F

MA

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
32:34
Rank: #24671
Start → 5K
10:29/mi
32:34 split
10K· 6.21 mi
1:05:13
Rank: #24710 (-39)
5K → 10K
10:31/mi
32:39 split
15K· 9.32 mi
1:38:45
Rank: #24794 (-84)
10K → 15K
10:48/mi
33:32 split
20K· 12.43 mi
2:13:35
Rank: #24849 (-55)
15K → 20K
11:13/mi
34:50 split
Half· 13.11 mi
2:21:08
Rank: #24865 (-16)
20K → Half
11:04/mi
7:33 split
25K· 15.53 mi
2:48:42
Rank: #24794 (+71)
Half → 25K
11:22/mi
27:34 split
30K· 18.64 mi
3:25:10
Rank: #24681 (+113)
25K → 30K
11:44/mi
36:28 split
20M
3:41:15
Rank: #24628 (+53)
30K → 20M
11:50/mi
16:05 split
21M
3:53:31
Rank: #24556 (+72)
20M → 21M
12:16/mi
12:16 split
35K· 21.75 mi
4:02:23
Rank: #24567 (-11)
21M → 35K
11:51/mi
8:52 split
23M
4:18:33
Rank: #24623 (-56)
35K → 23M
12:55/mi
16:10 split
24M
4:29:27
Rank: #24540 (+83)
23M → 24M
10:54/mi
10:54 split
40K· 24.85 mi
4:39:10
Rank: #24498 (+42)
24M → 40K
11:22/mi
9:43 split
25.2M
4:43:05
Rank: #24463 (+35)
40K → 25.2M
11:21/mi
3:55 split
Finish· 26.22 mi
4:53:39
Rank: #24417 (+46)
25.2M → Finish
10:22/mi
10:34 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:08
Pace10:46 /mi
2nd Half
Distance13.11 mi
Time2:32:31
Pace11:38 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:3332:3410:2932:34
10:29
-
10K
6.21 mi12:28:121:05:1310:3032:39
10:31
+0:02
15K
9.32 mi13:01:441:38:4510:3633:32
10:48
+0:17
20K
12.43 mi13:36:342:13:3510:4534:50
11:13
+0:25
Half
13.11 mi13:44:072:21:0810:467:33
11:04
-0:09
25K
15.53 mi14:11:412:48:4210:5227:34
11:22
+0:18
30K
18.64 mi14:48:093:25:1011:0036:28
11:44
+0:22
20M
20.00 mi15:04:143:41:1511:0416:05
11:50
+0:06
21M
21.00 mi15:16:303:53:3111:0712:16
12:16
+0:26
35K
21.75 mi15:25:224:02:2311:098:52
11:51
-0:25
23M
23.00 mi15:41:324:18:3311:1416:10
12:55
+1:04
24M
24.00 mi15:52:264:29:2711:1410:54
10:54
-2:01
40K
24.85 mi16:02:094:39:1011:149:43
11:22
+0:28
25.2M
25.20 mi16:06:044:43:0511:143:55
11:21
-0:01
Finish
26.22 mi16:16:384:53:3911:1210:34
10:22
-0:59

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

10:22 /mi

Average Pace

11:12 /mi

Slowest Pace

12:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:13

41% of race

Time at Steady Pace

1:23:35

28% of race

Time at Slower Pace

1:29:51

31% of race

Average Pace: 11:12 /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 mi11:55:3332:3410:2932:34
10:29
#24671
10K
6.21 mi12:28:121:05:1310:3032:39
10:31
#24710
15K
9.32 mi13:01:441:38:4510:3633:32
10:48
#24794
20K
12.43 mi13:36:342:13:3510:4534:50
11:13
#24849
Half
13.11 mi13:44:072:21:0810:467:33
11:04
#24865
25K
15.53 mi14:11:412:48:4210:5227:34
11:22
#24794
30K
18.64 mi14:48:093:25:1011:0036:28
11:44
#24681
20M
20.00 mi15:04:143:41:1511:0416:05
11:50
#24628
21M
21.00 mi15:16:303:53:3111:0712:16
12:16
#24556
35K
21.75 mi15:25:224:02:2311:098:52
11:51
#24567
23M
23.00 mi15:41:324:18:3311:1416:10
12:55
#24623
24M
24.00 mi15:52:264:29:2711:1410:54
10:54
#24540
40K
24.85 mi16:02:094:39:1011:149:43
11:22
#24498
25.2M
25.20 mi16:06:044:43:0511:143:55
11:21
#24463
Finish
26.22 mi16:16:384:53:3911:1210:34
10:22
#24417
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24671102571025724924(Top 94%)10415(Top 91%)10415(Top 213%)
10K6.21 mi3.10 mi24710-3910272-1510272-1524697(Top 93%)10277(Top 90%)10277(Top 210%)
15K9.32 mi3.11 mi24794-8410335-6310335-6324924(Top 94%)10415(Top 91%)10415(Top 213%)
20K12.43 mi3.11 mi24849-5510367-3210367-3224894(Top 94%)10417(Top 91%)10417(Top 213%)
Half13.11 mi0.68 mi24865-1610381-1410381-1425030(Top 94%)10511(Top 92%)10511(Top 215%)
25K15.53 mi2.42 mi24794+7110353+2810353+2824507(Top 92%)10233(Top 90%)10233(Top 210%)
30K18.64 mi3.11 mi24681+11310301+5210301+5224181(Top 91%)10113(Top 89%)10113(Top 207%)
20M20.00 mi1.36 mi24628+5310287+1410287+1423994(Top 90%)10082(Top 88%)10082(Top 206%)
21M21.00 mi1.00 mi24556+7210246+4110246+4123157(Top 87%)9628(Top 84%)9628(Top 197%)
35K21.75 mi0.75 mi24567-1110258-1210258-1224533(Top 92%)10415(Top 91%)10415(Top 213%)
23M23.00 mi1.25 mi24623-5610302-4410302-4425002(Top 94%)10636(Top 93%)10636(Top 218%)
24M24.00 mi1.00 mi24540+8310267+3510267+3522871(Top 86%)9568(Top 84%)9568(Top 196%)
40K24.85 mi0.85 mi24498+4210249+1810249+1823017(Top 86%)9670(Top 85%)9670(Top 198%)
25.2M25.20 mi0.35 mi24463+3510232+1710232+1721303(Top 80%)8766(Top 77%)8766(Top 179%)
Finish26.22 mi1.02 mi24417+4610213+1910213+1922746(Top 85%)9531(Top 83%)9531(Top 195%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

24924

Females

10415

F18-39

10415

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

24697

Females

10277

F18-39

10277

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

24924

Females

10415

F18-39

10415

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

24894

Females

10417

F18-39

10417

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

25030

Females

10511

F18-39

10511

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

24507

Females

10233

F18-39

10233

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

24181

Females

10113

F18-39

10113

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23994

Females

10082

F18-39

10082

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23157

Females

9628

F18-39

9628

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

24533

Females

10415

F18-39

10415

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

25002

Females

10636

F18-39

10636

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22871

Females

9568

F18-39

9568

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

23017

Females

9670

F18-39

9670

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21303

Females

8766

F18-39

8766

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22746

Females

9531

F18-39

9531

Passing Analysis

Category:
Athletes Passed
1026
Passed By
772
Net Change
+254
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24671
5K → 10K177216-39#24671#24710
10K → 15K80164-84#24710#24794
15K → 20K80135-55#24794#24849
20K → Half1531-16#24849#24865
Half → 25K10635+71#24865#24794
25K → 30K15744+113#24794#24681
30K → 20M7522+53#24681#24628
20M → 21M808+72#24628#24556
21M → 35K1829-11#24556#24567
35K → 23M2076-56#24567#24623
23M → 24M874+83#24623#24540
24M → 40K475+42#24540#24498
40K → 25.2M350+35#24498#24463
25.2M → Finish493+46#24463#24417
TOTALS1026772+254
📊

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