Boston Marathon logo
BOSTON MARATHON 2023

Angie Song

Bib: 20539•F

WA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 47%
Division (F55-59)
#0 / 815
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:12
Rank: #14811
Start → 5K
25:12 | 8:07/mi
10K· 6.21 mi
51:32
Rank: #16464 (-1653)
5K → 10K
26:20 | 8:29/mi
15K· 9.32 mi
1:17:14
Rank: #16432 (+32)
10K → 15K
25:42 | 8:16/mi
20K· 12.43 mi
1:43:52
Rank: #16686 (-254)
15K → 20K
26:38 | 8:34/mi
Half· 13.11 mi
1:49:37
Rank: #16708 (-22)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:10:41
Rank: #16816 (-108)
Half → 25K
21:04 | 8:41/mi
30K· 18.64 mi
2:39:10
Rank: #16992 (-176)
25K → 30K
28:29 | 9:10/mi
20M
2:51:54
Rank: #17096 (-104)
30K → 20M
12:44 | 9:22/mi
21M
3:02:36
Rank: #17355 (-259)
20M → 21M
10:42 | 10:42/mi
35K· 21.75 mi
3:09:14
Rank: #17348 (+7)
21M → 35K
6:38 | 8:52/mi
23M
3:20:46
Rank: #17342 (+6)
35K → 23M
11:32 | 9:13/mi
24M
3:29:39
Rank: #17319 (+23)
23M → 24M
8:53 | 8:53/mi
40K· 24.85 mi
3:37:22
Rank: #17265 (+54)
24M → 40K
7:43 | 9:02/mi
25.2M
3:41:01
Rank: #17320 (-55)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
3:50:10
Rank: #17376 (-56)
25.2M → Finish
9:09 | 8:59/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
Time1:49:37
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time2:00:33
Pace9:12 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3525:128:0725:12
8:07
-
10K
6.21 mi11:43:5551:328:1826:20
8:29
+0:22
15K
9.32 mi12:09:371:17:148:1725:42
8:16
-0:13
20K
12.43 mi12:36:151:43:528:2126:38
8:34
+0:18
Half
13.11 mi12:42:001:49:378:225:45
8:26
-0:08
25K
15.53 mi13:03:042:10:418:2521:04
8:41
+0:15
30K
18.64 mi13:31:332:39:108:3228:29
9:10
+0:29
20M
20.00 mi13:44:172:51:548:3612:44
9:22
+0:12
21M
21.00 mi13:54:593:02:368:4210:42
10:42
+1:20
35K
21.75 mi14:01:373:09:148:426:38
8:52
-1:50
23M
23.00 mi14:13:093:20:468:4411:32
9:13
+0:21
24M
24.00 mi14:22:023:29:398:448:53
8:53
-0:20
40K
24.85 mi14:29:453:37:228:457:43
9:02
+0:09
25.2M
25.20 mi14:33:243:41:018:463:39
10:35
+1:33
Finish
26.22 mi14:42:333:50:108:479:09
8:59
-1:36

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

8:07 /mi

Average Pace

8:47 /mi

Slowest Pace

10:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:59

36% of race

Time at Steady Pace

2:00:06

52% of race

Time at Slower Pace

27:05

12% of race

Average Pace: 8:47 /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 mi11:17:3525:128:0725:12
8:07
#14811
10K
6.21 mi11:43:5551:328:1826:20
8:29
#16464
15K
9.32 mi12:09:371:17:148:1725:42
8:16
#16432
20K
12.43 mi12:36:151:43:528:2126:38
8:34
#16686
Half
13.11 mi12:42:001:49:378:225:45
8:26
#16708
25K
15.53 mi13:03:042:10:418:2521:04
8:41
#16816
30K
18.64 mi13:31:332:39:108:3228:29
9:10
#16992
20M
20.00 mi13:44:172:51:548:3612:44
9:22
#17096
21M
21.00 mi13:54:593:02:368:4210:42
10:42
#17355
35K
21.75 mi14:01:373:09:148:426:38
8:52
#17348
23M
23.00 mi14:13:093:20:468:4411:32
9:13
#17342
24M
24.00 mi14:22:023:29:398:448:53
8:53
#17319
40K
24.85 mi14:29:453:37:228:457:43
9:02
#17265
25.2M
25.20 mi14:33:243:41:018:463:39
10:35
#17320
Finish
26.22 mi14:42:333:50:108:479:09
8:59
#17376
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi148114525452516369(Top 61%)5517(Top 48%)5517(Top 677%)
10K6.21 mi3.10 mi16464-16535562-10375562-103718113(Top 68%)6542(Top 57%)6542(Top 803%)
15K9.32 mi3.11 mi16432+325547+155547+1516369(Top 61%)5517(Top 48%)5517(Top 677%)
20K12.43 mi3.11 mi16686-2545727-1805727-18017319(Top 65%)6119(Top 54%)6119(Top 751%)
Half13.11 mi0.68 mi16708-225749-225749-2217363(Top 65%)6109(Top 53%)6109(Top 750%)
25K15.53 mi2.42 mi16816-1085846-975846-9717330(Top 65%)6191(Top 54%)6191(Top 760%)
30K18.64 mi3.11 mi16992-1765958-1125958-11218023(Top 68%)6663(Top 58%)6663(Top 818%)
20M20.00 mi1.36 mi17096-1046027-696027-6918330(Top 69%)6920(Top 61%)6920(Top 849%)
21M21.00 mi1.00 mi17355-2596205-1786205-17820151(Top 76%)8003(Top 70%)8003(Top 982%)
35K21.75 mi0.75 mi17348+76211-66211-617303(Top 65%)6443(Top 56%)6443(Top 791%)
23M23.00 mi1.25 mi17342+66222-116222-1117129(Top 64%)6358(Top 56%)6358(Top 780%)
24M24.00 mi1.00 mi17319+236218+46218+416708(Top 63%)6202(Top 54%)6202(Top 761%)
40K24.85 mi0.85 mi17265+546209+96209+916312(Top 61%)6037(Top 53%)6037(Top 741%)
25.2M25.20 mi0.35 mi17320-556247-386247-3819366(Top 73%)7700(Top 67%)7700(Top 945%)
Finish26.22 mi1.02 mi17376-566292-456292-4517890(Top 67%)6852(Top 60%)6852(Top 841%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16369

Females

5517

F55-59

5517

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

18113

Females

6542

F55-59

6542

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16369

Females

5517

F55-59

5517

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

17319

Females

6119

F55-59

6119

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

17363

Females

6109

F55-59

6109

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

17330

Females

6191

F55-59

6191

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

18023

Females

6663

F55-59

6663

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

18330

Females

6920

F55-59

6920

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20151

Females

8003

F55-59

8003

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

17303

Females

6443

F55-59

6443

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

17129

Females

6358

F55-59

6358

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16708

Females

6202

F55-59

6202

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16312

Females

6037

F55-59

6037

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19366

Females

7700

F55-59

7700

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17890

Females

6852

F55-59

6852

Passing Analysis

Category:
Athletes Passed
992
Passed By
3557
Net Change
-2565
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14811
5K → 10K161669-1653#14811#16464
10K → 15K208176+32#16464#16432
15K → 20K97351-254#16432#16686
20K → Half2345-22#16686#16708
Half → 25K98206-108#16708#16816
25K → 30K118294-176#16816#16992
30K → 20M41145-104#16992#17096
20M → 21M28287-259#17096#17355
21M → 35K5649+7#17355#17348
35K → 23M8781+6#17348#17342
23M → 24M7148+23#17342#17319
24M → 40K9642+54#17319#17265
40K → 25.2M1469-55#17265#17320
25.2M → Finish3995-56#17320#17376
TOTALS9923557-2565
📊

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