Boston Marathon logo
BOSTON MARATHON 2023

Susie Colvill

Bib: 30573•F

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:10
Rank: #24372
Start → 5K
32:10 | 10:21/mi
10K· 6.21 mi
1:04:05
Rank: #24299 (+73)
5K → 10K
31:55 | 10:16/mi
15K· 9.32 mi
1:36:51
Rank: #24413 (-114)
10K → 15K
32:46 | 10:33/mi
20K· 12.43 mi
2:10:47
Rank: #24460 (-47)
15K → 20K
33:56 | 10:55/mi
Half· 13.11 mi
2:18:13
Rank: #24479 (-19)
20K → Half
7:26 | 10:54/mi
25K· 15.53 mi
2:45:32
Rank: #24463 (+16)
Half → 25K
27:19 | 11:16/mi
30K· 18.64 mi
3:22:41
Rank: #24485 (-22)
25K → 30K
37:09 | 11:57/mi
20M
3:39:18
Rank: #24482 (+3)
30K → 20M
16:37 | 12:14/mi
21M
3:52:31
Rank: #24475 (+7)
20M → 21M
13:13 | 13:13/mi
35K· 21.75 mi
4:00:57
Rank: #24456 (+19)
21M → 35K
8:26 | 11:16/mi
23M
4:15:49
Rank: #24413 (+43)
35K → 23M
14:52 | 11:52/mi
24M
4:27:50
Rank: #24439 (-26)
23M → 24M
12:01 | 12:01/mi
40K· 24.85 mi
4:38:21
Rank: #24453 (-14)
24M → 40K
10:31 | 12:18/mi
25.2M
4:42:52
Rank: #24450 (+3)
40K → 25.2M
4:31 | 13:06/mi
Finish· 26.22 mi
4:54:30
Rank: #24470 (-20)
25.2M → Finish
11:38 | 11:25/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
Time2:18:13
Pace10:33 /mi
2nd Half
Distance13.11 mi
Time2:36:17
Pace11:55 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4732:1010:2132:10
10:21
-
10K
6.21 mi12:22:421:04:0510:1931:55
10:16
-0:05
15K
9.32 mi12:55:281:36:5110:2332:46
10:33
+0:17
20K
12.43 mi13:29:242:10:4710:3133:56
10:55
+0:22
Half
13.11 mi13:36:502:18:1310:337:26
10:54
-0:01
25K
15.53 mi14:04:092:45:3210:3927:19
11:16
+0:22
30K
18.64 mi14:41:183:22:4110:5237:09
11:57
+0:41
20M
20.00 mi14:57:553:39:1810:5816:37
12:14
+0:17
21M
21.00 mi15:11:083:52:3111:0413:13
13:13
+0:59
35K
21.75 mi15:19:344:00:5711:058:26
11:16
-1:57
23M
23.00 mi15:34:264:15:4911:0714:52
11:52
+0:36
24M
24.00 mi15:46:274:27:5011:1012:01
12:01
+0:09
40K
24.85 mi15:56:584:38:2111:1210:31
12:18
+0:17
25.2M
25.20 mi16:01:294:42:5211:134:31
13:06
+0:48
Finish
26.22 mi16:13:074:54:3011:1411:38
11:25
-1:41

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

10:16 /mi

Average Pace

11:14 /mi

Slowest Pace

13:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:13

47% of race

Time at Steady Pace

47:23

16% of race

Time at Slower Pace

1:48:54

37% of race

Average Pace: 11:14 /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 mi11:50:4732:1010:2132:10
10:21
#24372
10K
6.21 mi12:22:421:04:0510:1931:55
10:16
#24299
15K
9.32 mi12:55:281:36:5110:2332:46
10:33
#24413
20K
12.43 mi13:29:242:10:4710:3133:56
10:55
#24460
Half
13.11 mi13:36:502:18:1310:337:26
10:54
#24479
25K
15.53 mi14:04:092:45:3210:3927:19
11:16
#24463
30K
18.64 mi14:41:183:22:4110:5237:09
11:57
#24485
20M
20.00 mi14:57:553:39:1810:5816:37
12:14
#24482
21M
21.00 mi15:11:083:52:3111:0413:13
13:13
#24475
35K
21.75 mi15:19:344:00:5711:058:26
11:16
#24456
23M
23.00 mi15:34:264:15:4911:0714:52
11:52
#24413
24M
24.00 mi15:46:274:27:5011:1012:01
12:01
#24439
40K
24.85 mi15:56:584:38:2111:1210:31
12:18
#24453
25.2M
25.20 mi16:01:294:42:5211:134:31
13:06
#24450
Finish
26.22 mi16:13:074:54:3011:1411:38
11:25
#24470
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi24372100801008024548(Top 92%)10208(Top 89%)10208(Top 1253%)
10K6.21 mi3.10 mi24299+7310053+2710053+2724256(Top 91%)10030(Top 88%)10030(Top 1231%)
15K9.32 mi3.11 mi24413-11410113-6010113-6024548(Top 92%)10208(Top 89%)10208(Top 1253%)
20K12.43 mi3.11 mi24460-4710148-3510148-3524516(Top 92%)10210(Top 89%)10210(Top 1253%)
Half13.11 mi0.68 mi24479-1910168-2010168-2024803(Top 93%)10378(Top 91%)10378(Top 1273%)
25K15.53 mi2.42 mi24463+1610164+410164+424362(Top 92%)10149(Top 89%)10149(Top 1245%)
30K18.64 mi3.11 mi24485-2210193-2910193-2924446(Top 92%)10247(Top 90%)10247(Top 1257%)
20M20.00 mi1.36 mi24482+310202-910202-924470(Top 92%)10321(Top 90%)10321(Top 1266%)
21M21.00 mi1.00 mi24475+710203-110203-124319(Top 91%)10256(Top 90%)10256(Top 1258%)
35K21.75 mi0.75 mi24456+1910196+710196+723777(Top 89%)10029(Top 88%)10029(Top 1231%)
23M23.00 mi1.25 mi24413+4310187+910187+923829(Top 90%)10023(Top 88%)10023(Top 1230%)
24M24.00 mi1.00 mi24439-2610211-2410211-2424555(Top 92%)10461(Top 92%)10461(Top 1284%)
40K24.85 mi0.85 mi24453-1410221-1010221-1024238(Top 91%)10303(Top 90%)10303(Top 1264%)
25.2M25.20 mi0.35 mi24450+310224-310224-324099(Top 91%)10238(Top 90%)10238(Top 1256%)
Finish26.22 mi1.02 mi24470-2010245-2110245-2124584(Top 92%)10450(Top 91%)10450(Top 1282%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

24548

Females

10208

F55-59

10208

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24256

Females

10030

F55-59

10030

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

24548

Females

10208

F55-59

10208

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24516

Females

10210

F55-59

10210

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24803

Females

10378

F55-59

10378

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24362

Females

10149

F55-59

10149

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

24446

Females

10247

F55-59

10247

30K→20M

18.6 - 20.0 mi

Top 92%
×5stories
+64ft-50ft

Overall

24470

Females

10321

F55-59

10321

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

24319

Females

10256

F55-59

10256

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23777

Females

10029

F55-59

10029

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

23829

Females

10023

F55-59

10023

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

24555

Females

10461

F55-59

10461

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24238

Females

10303

F55-59

10303

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

24099

Females

10238

F55-59

10238

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

24584

Females

10450

F55-59

10450

Passing Analysis

Category:
Athletes Passed
839
Passed By
937
Net Change
-98
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24372
5K → 10K224151+73#24372#24299
10K → 15K83197-114#24299#24413
15K → 20K74121-47#24413#24460
20K → Half1635-19#24460#24479
Half → 25K9175+16#24479#24463
25K → 30K96118-22#24463#24485
30K → 20M4542+3#24485#24482
20M → 21M4639+7#24482#24475
21M → 35K3516+19#24475#24456
35K → 23M6522+43#24456#24413
23M → 24M2046-26#24413#24439
24M → 40K1832-14#24439#24453
40K → 25.2M118+3#24453#24450
25.2M → Finish1535-20#24450#24470
TOTALS839937-98
📊

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