Boston Marathon logo
BOSTON MARATHON 2023

Sara Bahu

MI

Bib: 19279 F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
Masters (Masters Women)
#0 / 6539
Top 32%
Division (F45-49)
#0 / 1817
Top 37%
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
8:19/mi
25:49
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:11/mi
51:15
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:13/mi
1:16:47
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:24/mi
1:42:52
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:08/mi
1:48:25
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:19/mi
2:08:36
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:37/mi
2:35:21
↑ 181↓ 1480.2%
138 ft elev
20M
9:05/mi
2:47:41
↑ 64↓ 500.2%
148 ft elev
21M
8:53/mi
2:56:34
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:28/mi
3:02:54
↑ 17↓ 861.7%
156 ft elev
23M
8:41/mi
3:13:46
↑ 23↓ 630.6%
116 ft elev
24M
8:27/mi
3:22:13
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:43/mi
3:29:40
↓ 200.3%
20 ft elev
25.2M
9:28/mi
3:32:56
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:15/mi
3:41:20
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:25
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:52:55
Pace8:37 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5825:498:1925:49
8:19
-
10K
6.21 mi11:43:2451:158:1525:26
8:11
-0:08
15K
9.32 mi12:08:561:16:478:1425:32
8:13
+0:02
20K
12.43 mi12:35:011:42:528:1726:05
8:24
+0:11
Half
13.11 mi12:40:341:48:258:165:33
8:08
-0:16
25K
15.53 mi13:00:452:08:368:1720:11
8:19
+0:11
30K
18.64 mi13:27:302:35:218:2026:45
8:37
+0:18
20M
20.00 mi13:39:502:47:418:2312:20
9:05
+0:28
21M
21.00 mi13:48:432:56:348:248:53
8:53
-0:12
35K
21.75 mi13:55:033:02:548:256:20
8:28
-0:25
23M
23.00 mi14:05:553:13:468:2510:52
8:41
+0:13
24M
24.00 mi14:14:223:22:138:268:27
8:27
-0:14
40K
24.85 mi14:21:493:29:408:267:27
8:43
+0:16
25.2M
25.20 mi14:25:053:32:568:273:16
9:28
+0:45
Finish
26.22 mi14:33:293:41:208:278:24
8:15
-1:13

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

8:08 /mi

Average Pace

8:27 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:44

93% of race

Time at Steady Pace

15:36

7% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:26 /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 mi11:17:5825:498:1925:49
8:19
#16229
10K
6.21 mi11:43:2451:158:1525:26
8:11
#16175
15K
9.32 mi12:08:561:16:478:1425:32
8:13
#16105
20K
12.43 mi12:35:011:42:528:1726:05
8:24
#16105
Half
13.11 mi12:40:341:48:258:165:33
8:08
#16057
25K
15.53 mi13:00:452:08:368:1720:11
8:19
#15887
30K
18.64 mi13:27:302:35:218:2026:45
8:37
#15715
20M
20.00 mi13:39:502:47:418:2312:20
9:05
#15774
21M
21.00 mi13:48:432:56:348:248:53
8:53
#15580
35K
21.75 mi13:55:033:02:548:256:20
8:28
#15569
23M
23.00 mi14:05:553:13:468:2510:52
8:41
#15463
24M
24.00 mi14:14:223:22:138:268:27
8:27
#15401
40K
24.85 mi14:21:493:29:408:267:27
8:43
#15367
25.2M
25.20 mi14:25:053:32:568:273:16
9:28
#15340
Finish
26.22 mi14:33:293:41:208:278:24
8:15
#15265
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi162295425542515997(Top 60%)5297(Top 46%)5297(Top 292%)
10K6.21 mi3.10 mi16175+545383+425383+4216164(Top 61%)5379(Top 47%)5379(Top 296%)
15K9.32 mi3.11 mi16105+705351+325351+3215997(Top 60%)5297(Top 46%)5297(Top 292%)
20K12.43 mi3.11 mi161055370-195370-1916217(Top 61%)5477(Top 48%)5477(Top 301%)
Half13.11 mi0.68 mi16057+485344+265344+2615384(Top 58%)4918(Top 43%)4918(Top 271%)
25K15.53 mi2.42 mi15887+1705266+785266+7815114(Top 57%)4919(Top 43%)4919(Top 271%)
30K18.64 mi3.11 mi15715+1725199+675199+6714984(Top 56%)4920(Top 43%)4920(Top 271%)
20M20.00 mi1.36 mi15774-595256-575256-5716927(Top 64%)6107(Top 53%)6107(Top 336%)
21M21.00 mi1.00 mi15580+1945165+915165+9112797(Top 48%)3848(Top 34%)3848(Top 212%)
35K21.75 mi0.75 mi15569+115177-125177-1215140(Top 57%)5191(Top 45%)5191(Top 286%)
23M23.00 mi1.25 mi15463+1065140+375140+3714278(Top 54%)4778(Top 42%)4778(Top 263%)
24M24.00 mi1.00 mi15401+625110+305110+3014209(Top 53%)4795(Top 42%)4795(Top 264%)
40K24.85 mi0.85 mi15367+345103+75103+714621(Top 55%)5095(Top 45%)5095(Top 280%)
25.2M25.20 mi0.35 mi15340+275098+55098+515101(Top 57%)5355(Top 47%)5355(Top 295%)
Finish26.22 mi1.02 mi15265+755059+395059+3913752(Top 52%)4611(Top 40%)4611(Top 254%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

15997

Females

5297

F45-49

5297

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

16164

Females

5379

F45-49

5379

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

15997

Females

5297

F45-49

5297

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

16217

Females

5477

F45-49

5477

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15384

Females

4918

F45-49

4918

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15114

Females

4919

F45-49

4919

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

14984

Females

4920

F45-49

4920

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

16927

Females

6107

F45-49

6107

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12797

Females

3848

F45-49

3848

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

15140

Females

5191

F45-49

5191

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14278

Females

4778

F45-49

4778

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14209

Females

4795

F45-49

4795

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14621

Females

5095

F45-49

5095

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15101

Females

5355

F45-49

5355

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13752

Females

4611

F45-49

4611

Passing Analysis

Category:
Athletes Passed
2046
Passed By
1082
Net Change
+964
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16229
5K → 10K317263+54#16229#16175
10K → 15K230160+70#16175#16105
15K → 20K1731730#16105#16105
20K → Half5810+48#16105#16057
Half → 25K22252+170#16057#15887
25K → 30K26189+172#15887#15715
30K → 20M68127-59#15715#15774
20M → 21M20612+194#15774#15580
21M → 35K5039+11#15580#15569
35K → 23M14034+106#15569#15463
23M → 24M9634+62#15463#15401
24M → 40K7844+34#15401#15367
40K → 25.2M4114+27#15367#15340
25.2M → Finish10631+75#15340#15265
TOTALS20461082+964
📊

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