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BOSTON MARATHON 2023

Chrissy Guerra

CA

Bib: 16297 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 50%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:09/mi
25:19
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:20/mi
51:13
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:34/mi
1:17:51
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:39/mi
1:44:45
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:24/mi
1:50:29
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:40/mi
2:11:29
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:01/mi
2:39:29
↑ 181↓ 1480.2%
138 ft elev
20M
8:54/mi
2:51:34
↑ 64↓ 500.2%
148 ft elev
21M
9:27/mi
3:01:01
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:37/mi
3:07:28
↑ 17↓ 861.7%
156 ft elev
23M
8:49/mi
3:18:30
↑ 23↓ 630.6%
116 ft elev
24M
8:36/mi
3:27:06
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:36/mi
3:34:27
↓ 200.3%
20 ft elev
25.2M
9:08/mi
3:37:36
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:13/mi
3:45:58
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:50:298:26 /mi⚡ faster
2nd Half
1:55:298:49 /mi+4.5%
Positive split — 4.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
25:198:093.11 mi25:19
8:09
-
10K
51:138:153.10 mi25:54
8:20
+0:11
15K
1:17:518:213.11 mi26:38
8:34
+0:14
20K
1:44:458:263.11 mi26:54
8:39
+0:05
Half(13.11 mi)
1:50:298:260.68 mi5:44
8:24
-0:15
25K
2:11:298:282.42 mi21:00
8:40
+0:16
30K
2:39:298:333.11 mi28:00
9:01
+0:21
20M
2:51:348:351.36 mi12:05
8:54
-0:07
21M
3:01:018:371.00 mi9:27
9:27
+0:33
35K
3:07:288:370.75 mi6:27
8:37
-0:50
23M
3:18:308:381.25 mi11:02
8:49
+0:12
24M
3:27:068:381.00 mi8:36
8:36
-0:13
40K
3:34:278:380.85 mi7:21
8:36
0:00
25.2M
3:37:368:380.35 mi3:09
9:08
+0:32
Finish(26.22 mi)
3:45:588:371.02 mi8:22
8:13
-0:55
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:09 /mi

Average Pace

8:37 /mi

Slowest Pace

9:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:05:22

82% of race

Time at Steady Pace

40:36

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi15083470247021827666586658
10K3.10 mi16139-10565360-6585360-6581717459825982
15K3.11 mi16870-7315837-4775837-4771827666586658
20K3.11 mi17141-2716015-1786015-1781786164266426
Half(13.11 mi)0.68 mi17140+16008+76008+71718560016001
25K2.42 mi17113+276010-26010-21716760956095
30K3.11 mi17087+266016-66016-61724362076207
20M1.36 mi16991+965964+525964+521598355655565
21M1.00 mi16917+745936+285936+281575454895489
35K0.75 mi16881+365921+155921+151600456945694
23M1.25 mi16772+1095885+365885+361508352295229
24M1.00 mi16682+905850+355850+351508452795279
40K0.85 mi16574+1085809+415809+411398047434743
25.2M0.35 mi16506+685776+335776+331337144424442
Finish(26.22 mi)1.02 mi16366+1405697+795697+791355645114511

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18276

Females

6658

F18-39

6658

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17174

Females

5982

F18-39

5982

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18276

Females

6658

F18-39

6658

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17861

Females

6426

F18-39

6426

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17185

Females

6001

F18-39

6001

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

17167

Females

6095

F18-39

6095

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17243

Females

6207

F18-39

6207

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15983

Females

5565

F18-39

5565

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15754

Females

5489

F18-39

5489

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16004

Females

5694

F18-39

5694

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15083

Females

5229

F18-39

5229

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15084

Females

5279

F18-39

5279

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

13980

Females

4743

F18-39

4743

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13371

Females

4442

F18-39

4442

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13556

Females

4511

F18-39

4511

Passing Analysis

Category:
Passed
1434
Passed By
2717
Net Change
-1283
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15083
5K → 10K391095-1056#15083#16139
10K → 15K39770-731#16139#16870
15K → 20K100371-271#16870#17141
20K → Half2524+1#17141#17140
Half → 25K137110+27#17140#17113
25K → 30K187161+26#17113#17087
30K → 20M12933+96#17087#16991
20M → 21M11541+74#16991#16917
21M → 35K6327+36#16917#16881
35K → 23M14435+109#16881#16772
23M → 24M11121+90#16772#16682
24M → 40K12315+108#16682#16574
40K → 25.2M702+68#16574#16506
25.2M → Finish15212+140#16506#16366
TOTALS14342717-1283

Passing Charts

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