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BOSTON MARATHON 2023

Crystal Alexander

Bib: 22438•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
Masters (Masters Women)
#0 / 6539
Top 24%
Division (F50-54)
#0 / 1207
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:10
Rank: #14730
Start → 5K
25:10 | 8:06/mi
10K· 6.21 mi
49:31
Rank: #14158 (+572)
5K → 10K
24:21 | 7:50/mi
15K· 9.32 mi
1:14:25
Rank: #14256 (-98)
10K → 15K
24:54 | 8:01/mi
20K· 12.43 mi
1:39:35
Rank: #14199 (+57)
15K → 20K
25:10 | 8:06/mi
Half· 13.11 mi
1:45:09
Rank: #14274 (-75)
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:05:18
Rank: #14393 (-119)
Half → 25K
20:09 | 8:19/mi
30K· 18.64 mi
2:31:52
Rank: #14433 (-40)
25K → 30K
26:34 | 8:33/mi
20M
2:43:31
Rank: #14382 (+51)
30K → 20M
11:39 | 8:34/mi
21M
2:52:34
Rank: #14340 (+42)
20M → 21M
9:03 | 9:03/mi
35K· 21.75 mi
2:58:38
Rank: #14264 (+76)
21M → 35K
6:04 | 8:07/mi
23M
3:09:30
Rank: #14242 (+22)
35K → 23M
10:52 | 8:41/mi
24M
3:17:45
Rank: #14163 (+79)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
3:24:59
Rank: #14110 (+53)
24M → 40K
7:14 | 8:28/mi
25.2M
3:28:09
Rank: #14089 (+21)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:36:24
Rank: #14029 (+60)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:09
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:51:15
Pace8:29 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4725:108:0625:10
8:06
-
10K
6.21 mi11:43:0849:317:5824:21
7:50
-0:16
15K
9.32 mi12:08:021:14:257:5924:54
8:01
+0:11
20K
12.43 mi12:33:121:39:358:0125:10
8:06
+0:05
Half
13.11 mi12:38:461:45:098:015:34
8:10
+0:04
25K
15.53 mi12:58:552:05:188:0420:09
8:19
+0:09
30K
18.64 mi13:25:292:31:528:0926:34
8:33
+0:14
20M
20.00 mi13:37:082:43:318:1111:39
8:34
+0:01
21M
21.00 mi13:46:112:52:348:139:03
9:03
+0:29
35K
21.75 mi13:52:152:58:388:136:04
8:07
-0:56
23M
23.00 mi14:03:073:09:308:1410:52
8:41
+0:34
24M
24.00 mi14:11:223:17:458:148:15
8:15
-0:26
40K
24.85 mi14:18:363:24:598:157:14
8:28
+0:13
25.2M
25.20 mi14:21:463:28:098:163:10
9:11
+0:43
Finish
26.22 mi14:30:013:36:248:168:15
8:06
-1:05

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

7:50 /mi

Average Pace

8:16 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:19

89% of race

Time at Steady Pace

23:05

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:15 /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 mi11:18:4725:108:0625:10
8:06
#14730
10K
6.21 mi11:43:0849:317:5824:21
7:50
#14158
15K
9.32 mi12:08:021:14:257:5924:54
8:01
#14256
20K
12.43 mi12:33:121:39:358:0125:10
8:06
#14199
Half
13.11 mi12:38:461:45:098:015:34
8:10
#14274
25K
15.53 mi12:58:552:05:188:0420:09
8:19
#14393
30K
18.64 mi13:25:292:31:528:0926:34
8:33
#14433
20M
20.00 mi13:37:082:43:318:1111:39
8:34
#14382
21M
21.00 mi13:46:112:52:348:139:03
9:03
#14340
35K
21.75 mi13:52:152:58:388:136:04
8:07
#14264
23M
23.00 mi14:03:073:09:308:1410:52
8:41
#14242
24M
24.00 mi14:11:223:17:458:148:15
8:15
#14163
40K
24.85 mi14:18:363:24:598:157:14
8:28
#14110
25.2M
25.20 mi14:21:463:28:098:163:10
9:11
#14089
Finish
26.22 mi14:30:013:36:248:168:15
8:06
#14029
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi147304475447514508(Top 54%)4389(Top 38%)4389(Top 364%)
10K6.21 mi3.10 mi14158+5724139+3364139+33613468(Top 51%)3701(Top 32%)3701(Top 307%)
15K9.32 mi3.11 mi14256-984211-724211-7214508(Top 54%)4389(Top 38%)4389(Top 364%)
20K12.43 mi3.11 mi14199+574203+84203+814240(Top 53%)4252(Top 37%)4252(Top 352%)
Half13.11 mi0.68 mi14274-754244-414244-4115507(Top 58%)4979(Top 44%)4979(Top 413%)
25K15.53 mi2.42 mi14393-1194341-974341-9715028(Top 56%)4856(Top 43%)4856(Top 402%)
30K18.64 mi3.11 mi14433-404415-744415-7414618(Top 55%)4699(Top 41%)4699(Top 389%)
20M20.00 mi1.36 mi14382+514411+44411+414092(Top 53%)4464(Top 39%)4464(Top 370%)
21M21.00 mi1.00 mi14340+424406+54406+513705(Top 51%)4329(Top 38%)4329(Top 359%)
35K21.75 mi0.75 mi14264+764370+364370+3612901(Top 48%)3954(Top 35%)3954(Top 328%)
23M23.00 mi1.25 mi14242+224376-64376-614265(Top 54%)4765(Top 42%)4765(Top 395%)
24M24.00 mi1.00 mi14163+794348+284348+2812966(Top 49%)4118(Top 36%)4118(Top 341%)
40K24.85 mi0.85 mi14110+534337+114337+1113102(Top 49%)4258(Top 37%)4258(Top 353%)
25.2M25.20 mi0.35 mi14089+214332+54332+513600(Top 51%)4537(Top 40%)4537(Top 376%)
Finish26.22 mi1.02 mi14029+604315+174315+1712784(Top 48%)4108(Top 36%)4108(Top 340%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14508

Females

4389

F50-54

4389

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13468

Females

3701

F50-54

3701

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14508

Females

4389

F50-54

4389

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

14240

Females

4252

F50-54

4252

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

15507

Females

4979

F50-54

4979

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15028

Females

4856

F50-54

4856

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14618

Females

4699

F50-54

4699

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14092

Females

4464

F50-54

4464

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13705

Females

4329

F50-54

4329

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12901

Females

3954

F50-54

3954

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

14265

Females

4765

F50-54

4765

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

12966

Females

4118

F50-54

4118

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13102

Females

4258

F50-54

4258

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13600

Females

4537

F50-54

4537

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12784

Females

4108

F50-54

4108

Passing Analysis

Category:
Athletes Passed
2028
Passed By
1327
Net Change
+701
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14730
5K → 10K678106+572#14730#14158
10K → 15K143241-98#14158#14256
15K → 20K196139+57#14256#14199
20K → Half1287-75#14199#14274
Half → 25K104223-119#14274#14393
25K → 30K163203-40#14393#14433
30K → 20M10857+51#14433#14382
20M → 21M9654+42#14382#14340
21M → 35K9014+76#14340#14264
35K → 23M9775+22#14264#14242
23M → 24M10930+79#14242#14163
24M → 40K9340+53#14163#14110
40K → 25.2M4726+21#14110#14089
25.2M → Finish9232+60#14089#14029
TOTALS20281327+701
📊

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