Boston Marathon logo
BOSTON MARATHON 2023

Gia Didonato-Sroczenski

Bib: 15765•F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 48%
Masters (Masters Women)
#0 / 6539
Top 37%
Division (F45-49)
#0 / 1817
Top 44%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:37
Rank: #13473
Start → 5K
24:37 | 7:55/mi
10K· 6.21 mi
49:39
Rank: #14331 (-858)
5K → 10K
25:02 | 8:03/mi
15K· 9.32 mi
1:15:02
Rank: #14758 (-427)
10K → 15K
25:23 | 8:10/mi
20K· 12.43 mi
1:40:50
Rank: #14977 (-219)
15K → 20K
25:48 | 8:18/mi
Half· 13.11 mi
1:46:27
Rank: #15018 (-41)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:06:59
Rank: #15164 (-146)
Half → 25K
20:32 | 8:28/mi
30K· 18.64 mi
2:34:26
Rank: #15374 (-210)
25K → 30K
27:27 | 8:50/mi
20M
2:46:26
Rank: #15380 (-6)
30K → 20M
12:00 | 8:50/mi
21M
2:56:02
Rank: #15412 (-32)
20M → 21M
9:36 | 9:36/mi
35K· 21.75 mi
3:02:48
Rank: #15529 (-117)
21M → 35K
6:46 | 9:03/mi
23M
3:14:25
Rank: #15638 (-109)
35K → 23M
11:37 | 9:17/mi
24M
3:23:41
Rank: #15795 (-157)
23M → 24M
9:16 | 9:16/mi
40K· 24.85 mi
3:31:25
Rank: #15812 (-17)
24M → 40K
7:44 | 9:03/mi
25.2M
3:34:50
Rank: #15824 (-12)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:43:54
Rank: #15906 (-82)
25.2M → Finish
9:04 | 8:54/mi

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 HalfFaster
Distance13.11 mi
Time1:46:27
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:57:27
Pace8:58 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:5024:377:5524:37
7:55
-
10K
6.21 mi11:20:5249:397:5925:02
8:03
+0:08
15K
9.32 mi11:46:151:15:028:0325:23
8:10
+0:07
20K
12.43 mi12:12:031:40:508:0725:48
8:18
+0:08
Half
13.11 mi12:17:401:46:278:075:37
8:14
-0:04
25K
15.53 mi12:38:122:06:598:1020:32
8:28
+0:14
30K
18.64 mi13:05:392:34:268:1727:27
8:50
+0:22
20M
20.00 mi13:17:392:46:268:1912:00
8:50
0:00
21M
21.00 mi13:27:152:56:028:239:36
9:36
+0:46
35K
21.75 mi13:34:013:02:488:246:46
9:03
-0:33
23M
23.00 mi13:45:383:14:258:2711:37
9:17
+0:14
24M
24.00 mi13:54:543:23:418:299:16
9:16
-0:01
40K
24.85 mi14:02:383:31:258:307:44
9:03
-0:13
25.2M
25.20 mi14:06:033:34:508:323:25
9:54
+0:51
Finish
26.22 mi14:15:073:43:548:339:04
8:54
-1:00

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

7:55 /mi

Average Pace

8:33 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:59

57% of race

Time at Steady Pace

1:03:01

28% of race

Time at Slower Pace

33:54

15% of race

Average Pace: 8:32 /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 mi10:55:5024:377:5524:37
7:55
#13473
10K
6.21 mi11:20:5249:397:5925:02
8:03
#14331
15K
9.32 mi11:46:151:15:028:0325:23
8:10
#14758
20K
12.43 mi12:12:031:40:508:0725:48
8:18
#14977
Half
13.11 mi12:17:401:46:278:075:37
8:14
#15018
25K
15.53 mi12:38:122:06:598:1020:32
8:28
#15164
30K
18.64 mi13:05:392:34:268:1727:27
8:50
#15374
20M
20.00 mi13:17:392:46:268:1912:00
8:50
#15380
21M
21.00 mi13:27:152:56:028:239:36
9:36
#15412
35K
21.75 mi13:34:013:02:488:246:46
9:03
#15529
23M
23.00 mi13:45:383:14:258:2711:37
9:17
#15638
24M
24.00 mi13:54:543:23:418:299:16
9:16
#15795
40K
24.85 mi14:02:383:31:258:307:44
9:03
#15812
25.2M
25.20 mi14:06:033:34:508:323:25
9:54
#15824
Finish
26.22 mi14:15:073:43:548:339:04
8:54
#15906
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi134733700370015664(Top 59%)5090(Top 45%)5090(Top 280%)
10K6.21 mi3.10 mi14331-8584248-5484248-54815236(Top 57%)4823(Top 42%)4823(Top 265%)
15K9.32 mi3.11 mi14758-4274512-2644512-26415664(Top 59%)5090(Top 45%)5090(Top 280%)
20K12.43 mi3.11 mi14977-2194670-1584670-15815644(Top 59%)5124(Top 45%)5124(Top 282%)
Half13.11 mi0.68 mi15018-414696-264696-2616079(Top 60%)5347(Top 47%)5347(Top 294%)
25K15.53 mi2.42 mi15164-1464812-1164812-11616020(Top 60%)5454(Top 48%)5454(Top 300%)
30K18.64 mi3.11 mi15374-2104995-1834995-18316287(Top 61%)5663(Top 50%)5663(Top 312%)
20M20.00 mi1.36 mi15380-65017-225017-2215625(Top 59%)5347(Top 47%)5347(Top 294%)
21M21.00 mi1.00 mi15412-325065-485065-4816434(Top 62%)5873(Top 51%)5873(Top 323%)
35K21.75 mi0.75 mi15529-1175154-895154-8918085(Top 68%)6879(Top 60%)6879(Top 379%)
23M23.00 mi1.25 mi15638-1095250-965250-9617416(Top 65%)6511(Top 57%)6511(Top 358%)
24M24.00 mi1.00 mi15795-1575357-1075357-10718337(Top 69%)7070(Top 62%)7070(Top 389%)
40K24.85 mi0.85 mi15812-175370-135370-1316406(Top 62%)6079(Top 53%)6079(Top 335%)
25.2M25.20 mi0.35 mi15824-125384-145384-1417043(Top 64%)6435(Top 56%)6435(Top 354%)
Finish26.22 mi1.02 mi15906-825434-505434-5017487(Top 66%)6638(Top 58%)6638(Top 365%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

15664

Females

5090

F45-49

5090

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15236

Females

4823

F45-49

4823

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

15664

Females

5090

F45-49

5090

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15644

Females

5124

F45-49

5124

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

16079

Females

5347

F45-49

5347

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

16020

Females

5454

F45-49

5454

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16287

Females

5663

F45-49

5663

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15625

Females

5347

F45-49

5347

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16434

Females

5873

F45-49

5873

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

18085

Females

6879

F45-49

6879

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

17416

Females

6511

F45-49

6511

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18337

Females

7070

F45-49

7070

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16406

Females

6079

F45-49

6079

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17043

Females

6435

F45-49

6435

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17487

Females

6638

F45-49

6638

Passing Analysis

Category:
Athletes Passed
856
Passed By
3289
Net Change
-2433
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13473
5K → 10K64922-858#13473#14331
10K → 15K73500-427#14331#14758
15K → 20K121340-219#14758#14977
20K → Half2263-41#14977#15018
Half → 25K89235-146#15018#15164
25K → 30K118328-210#15164#15374
30K → 20M8389-6#15374#15380
20M → 21M75107-32#15380#15412
21M → 35K18135-117#15412#15529
35K → 23M55164-109#15529#15638
23M → 24M31188-157#15638#15795
24M → 40K5774-17#15795#15812
40K → 25.2M2234-12#15812#15824
25.2M → Finish28110-82#15824#15906
TOTALS8563289-2433
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing