Boston Marathon logo
BOSTON MARATHON 2023

Christina Anastos

Bib: 26345•F

FL

0:00
0:00
/ mi
Be the first to cheer!
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
11:58/mi
37:10
↑ 97↓ 3451.5%
10K· 6.21 mi
11:51/mi
1:13:59
↑ 79↓ 1380.4%
15K· 9.32 mi
11:38/mi
1:50:07
↑ 67↓ 78
20K· 12.43 mi
11:24/mi
2:25:32
↑ 106↓ 860.1%
Half· 13.11 mi
10:52/mi
2:32:57
↑ 19↓ 370.5%
25K· 15.53 mi
12:04/mi
3:02:13
↑ 66↓ 880.2%
30K· 18.64 mi
11:32/mi
3:38:03
↑ 181↓ 1480.2%
20M
11:15/mi
3:53:20
↑ 64↓ 500.2%
21M
11:28/mi
4:04:48
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
4:12:46
↑ 17↓ 861.7%
23M
10:49/mi
4:26:18
↑ 23↓ 630.6%
24M
10:11/mi
4:36:29
↓ 821.3%
40K· 24.85 mi
10:34/mi
4:45:31
↓ 200.3%
25.2M
11:19/mi
4:49:25
↑ 13↓ 160.2%
Finish· 26.22 mi
10:04/mi
4:59:41
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half
Distance13.11 mi
Time2:32:57
Pace11:40 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:26:44
Pace11:12 /mi
📊Negative Split: 4.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:4537:1011:5837:10
11:58
-
10K
6.21 mi12:36:341:13:5911:5436:49
11:51
-0:07
15K
9.32 mi13:12:421:50:0711:4936:08
11:38
-0:13
20K
12.43 mi13:48:072:25:3211:4335:25
11:24
-0:14
Half
13.11 mi13:55:322:32:5711:407:25
10:52
-0:32
25K
15.53 mi14:24:483:02:1311:4429:16
12:04
+1:12
30K
18.64 mi15:00:383:38:0311:4235:50
11:32
-0:32
20M
20.00 mi15:15:553:53:2011:4015:17
11:15
-0:17
21M
21.00 mi15:27:234:04:4811:3911:28
11:28
+0:13
35K
21.75 mi15:35:214:12:4611:377:58
10:39
-0:49
23M
23.00 mi15:48:534:26:1811:3513:32
10:49
+0:10
24M
24.00 mi15:59:044:36:2911:3110:11
10:11
-0:38
40K
24.85 mi16:08:064:45:3111:299:02
10:34
+0:23
25.2M
25.20 mi16:12:004:49:2511:293:54
11:19
+0:45
Finish
26.22 mi16:22:164:59:4111:2610:16
10:04
-1:15

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

10:04 /mi

Average Pace

11:26 /mi

Slowest Pace

12:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:24

19% of race

Time at Steady Pace

2:54:51

58% of race

Time at Slower Pace

1:06:26

22% of race

Average Pace: 11:26 /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 mi11:59:4537:1011:5837:10
11:58
#26424
10K
6.21 mi12:36:341:13:5911:5436:49
11:51
#26346
15K
9.32 mi13:12:421:50:0711:4936:08
11:38
#26183
20K
12.43 mi13:48:072:25:3211:4335:25
11:24
#25965
Half
13.11 mi13:55:322:32:5711:407:25
10:52
#25916
25K
15.53 mi14:24:483:02:1311:4429:16
12:04
#25813
30K
18.64 mi15:00:383:38:0311:4235:50
11:32
#25521
20M
20.00 mi15:15:553:53:2011:4015:17
11:15
#25402
21M
21.00 mi15:27:234:04:4811:3911:28
11:28
#25272
35K
21.75 mi15:35:214:12:4611:377:58
10:39
#25199
23M
23.00 mi15:48:534:26:1811:3513:32
10:49
#25081
24M
24.00 mi15:59:044:36:2911:3110:11
10:11
#24991
40K
24.85 mi16:08:064:45:3111:299:02
10:34
#24889
25.2M
25.20 mi16:12:004:49:2511:293:54
11:19
#24850
Finish
26.22 mi16:22:164:59:4111:2610:16
10:04
#24801
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26424113091130925821(Top 97%)10929(Top 96%)10929(Top 224%)
10K6.21 mi3.10 mi26346+7811258+5111258+5126186(Top 98%)11159(Top 98%)11159(Top 228%)
15K9.32 mi3.11 mi26183+16311156+10211156+10225821(Top 97%)10929(Top 96%)10929(Top 224%)
20K12.43 mi3.11 mi25965+21811018+13811018+13825133(Top 94%)10562(Top 92%)10562(Top 216%)
Half13.11 mi0.68 mi25916+4910985+3310985+3324774(Top 93%)10362(Top 91%)10362(Top 212%)
25K15.53 mi2.42 mi25813+10310933+5210933+5225214(Top 95%)10636(Top 93%)10636(Top 218%)
30K18.64 mi3.11 mi25521+29210786+14710786+14723911(Top 90%)9967(Top 87%)9967(Top 204%)
20M20.00 mi1.36 mi25402+11910729+5710729+5723106(Top 87%)9573(Top 84%)9573(Top 196%)
21M21.00 mi1.00 mi25272+13010654+7510654+7521839(Top 82%)8912(Top 78%)8912(Top 182%)
35K21.75 mi0.75 mi25199+7310622+3210622+3222689(Top 85%)9419(Top 82%)9419(Top 193%)
23M23.00 mi1.25 mi25081+11810567+5510567+5521993(Top 83%)9069(Top 79%)9069(Top 186%)
24M24.00 mi1.00 mi24991+9010522+4510522+4521313(Top 80%)8738(Top 76%)8738(Top 179%)
40K24.85 mi0.85 mi24889+10210470+5210470+5221400(Top 80%)8845(Top 77%)8845(Top 181%)
25.2M25.20 mi0.35 mi24850+3910452+1810452+1821190(Top 80%)8712(Top 76%)8712(Top 178%)
Finish26.22 mi1.02 mi24801+4910428+2410428+2421986(Top 83%)9115(Top 80%)9115(Top 187%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

25821

Females

10929

F18-39

10929

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

26186

Females

11159

F18-39

11159

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

25821

Females

10929

F18-39

10929

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

25133

Females

10562

F18-39

10562

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

24774

Females

10362

F18-39

10362

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

25214

Females

10636

F18-39

10636

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

23911

Females

9967

F18-39

9967

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

23106

Females

9573

F18-39

9573

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

21839

Females

8912

F18-39

8912

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22689

Females

9419

F18-39

9419

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

21993

Females

9069

F18-39

9069

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21313

Females

8738

F18-39

8738

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21400

Females

8845

F18-39

8845

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21190

Females

8712

F18-39

8712

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

21986

Females

9115

F18-39

9115

Passing Analysis

Category:
Athletes Passed
1663
Passed By
40
Net Change
+1623
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26424
5K → 10K9517+78#26424#26346
10K → 15K1674+163#26346#26183
15K → 20K2180+218#26183#25965
20K → Half490+49#25965#25916
Half → 25K1085+103#25916#25813
25K → 30K2931+292#25813#25521
30K → 20M1201+119#25521#25402
20M → 21M1300+130#25402#25272
21M → 35K752+73#25272#25199
35K → 23M1202+118#25199#25081
23M → 24M922+90#25081#24991
24M → 40K1031+102#24991#24889
40K → 25.2M390+39#24889#24850
25.2M → Finish545+49#24850#24801
TOTALS166340+1623
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing