Boston Marathon logo
BOSTON MARATHON 2025

Joleen Pereira

Bib: 23553•F

WA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 48%
Division (F50-54)
#0 / 1303
Top 45%
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
9:01/mi
28:01
↑ 97↓ 3451.5%
10K· 6.21 mi
8:58/mi
55:54
↑ 79↓ 1380.4%
15K· 9.32 mi
8:46/mi
1:23:08
↑ 67↓ 78
20K· 12.43 mi
8:48/mi
1:50:29
↑ 106↓ 860.1%
Half· 13.11 mi
8:29/mi
1:56:16
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:17:16
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:45:22
↑ 181↓ 1480.2%
20M
8:51/mi
2:57:23
↑ 64↓ 500.2%
21M
9:44/mi
3:07:07
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
3:13:18
↑ 17↓ 861.7%
23M
8:40/mi
3:24:09
↑ 23↓ 630.6%
24M
8:11/mi
3:32:20
↓ 821.3%
40K· 24.85 mi
8:23/mi
3:39:30
↓ 200.3%
25.2M
9:31/mi
3:42:47
↑ 13↓ 160.2%
Finish· 26.22 mi
8:26/mi
3:51:23
↑ 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⚖️ Balanced
Distance13.11 mi
Time1:56:16
Pace8:52 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:07
Pace8:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5728:019:0128:01
9:01
-
10K
6.21 mi11:54:5055:549:0027:53
8:58
-0:03
15K
9.32 mi12:22:041:23:088:5527:14
8:46
-0:12
20K
12.43 mi12:49:251:50:298:5327:21
8:48
+0:02
Half
13.11 mi12:55:121:56:168:525:47
8:29
-0:19
25K
15.53 mi13:16:122:17:168:5021:00
8:40
+0:11
30K
18.64 mi13:44:182:45:228:5228:06
9:03
+0:23
20M
20.00 mi13:56:192:57:238:5212:01
8:51
-0:12
21M
21.00 mi14:06:033:07:078:559:44
9:44
+0:53
35K
21.75 mi14:12:143:13:188:536:11
8:16
-1:28
23M
23.00 mi14:23:053:24:098:5310:51
8:40
+0:24
24M
24.00 mi14:31:163:32:208:518:11
8:11
-0:29
40K
24.85 mi14:38:263:39:308:507:10
8:23
+0:12
25.2M
25.20 mi14:41:433:42:478:503:17
9:31
+1:08
Finish
26.22 mi14:50:193:51:238:508:36
8:26
-1:05

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

8:11 /mi

Average Pace

8:50 /mi

Slowest Pace

9:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:15

70% of race

Time at Steady Pace

59:24

26% of race

Time at Slower Pace

9:44

4% of race

Average Pace: 8:49 /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 mi11:26:5728:019:0128:01
9:01
#22487
10K
6.21 mi11:54:5055:549:0027:53
8:58
#22412
15K
9.32 mi12:22:041:23:088:5527:14
8:46
#21910
20K
12.43 mi12:49:251:50:298:5327:21
8:48
#21392
Half
13.11 mi12:55:121:56:168:525:47
8:29
#21266
25K
15.53 mi13:16:122:17:168:5021:00
8:40
#20794
30K
18.64 mi13:44:182:45:228:5228:06
9:03
#20242
20M
20.00 mi13:56:192:57:238:5212:01
8:51
#19928
21M
21.00 mi14:06:033:07:078:559:44
9:44
#19749
35K
21.75 mi14:12:143:13:188:536:11
8:16
#19572
23M
23.00 mi14:23:053:24:098:5310:51
8:40
#19287
24M
24.00 mi14:31:163:32:208:518:11
8:11
#19035
40K
24.85 mi14:38:263:39:308:507:10
8:23
#18802
25.2M
25.20 mi14:41:433:42:478:503:17
9:31
#18731
Finish
26.22 mi14:50:193:51:238:508:36
8:26
#18623
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi224878895889520850(Top 73%)7914(Top 65%)7914(Top 607%)
10K6.21 mi3.10 mi22412+758843+528843+5222273(Top 78%)8748(Top 72%)8748(Top 671%)
15K9.32 mi3.11 mi21910+5028546+2978546+29720850(Top 73%)7914(Top 65%)7914(Top 607%)
20K12.43 mi3.11 mi21392+5188255+2918255+29119949(Top 70%)7450(Top 61%)7450(Top 572%)
Half13.11 mi0.68 mi21266+1268181+748181+7419102(Top 67%)6961(Top 57%)6961(Top 534%)
25K15.53 mi2.42 mi20794+4727927+2547927+25418170(Top 64%)6521(Top 53%)6521(Top 500%)
30K18.64 mi3.11 mi20242+5527666+2617666+26117920(Top 63%)6540(Top 53%)6540(Top 502%)
20M20.00 mi1.36 mi19928+3147504+1627504+16215939(Top 56%)5566(Top 46%)5566(Top 427%)
21M21.00 mi1.00 mi19749+1797428+767428+7617206(Top 61%)6378(Top 52%)6378(Top 489%)
35K21.75 mi0.75 mi19572+1777348+807348+8014120(Top 50%)4756(Top 39%)4756(Top 365%)
23M23.00 mi1.25 mi19287+2857212+1367212+13614374(Top 51%)5011(Top 41%)5011(Top 385%)
24M24.00 mi1.00 mi19035+2527086+1267086+12612517(Top 44%)4071(Top 33%)4071(Top 312%)
40K24.85 mi0.85 mi18802+2336993+936993+9312749(Top 45%)4323(Top 35%)4323(Top 332%)
25.2M25.20 mi0.35 mi18731+716962+316962+3114796(Top 52%)5466(Top 45%)5466(Top 419%)
Finish26.22 mi1.02 mi18623+1086915+476915+4715871(Top 56%)5960(Top 49%)5960(Top 457%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20850

Females

7914

F50-54

7914

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22273

Females

8748

F50-54

8748

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20850

Females

7914

F50-54

7914

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

19949

Females

7450

F50-54

7450

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

19102

Females

6961

F50-54

6961

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18170

Females

6521

F50-54

6521

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17920

Females

6540

F50-54

6540

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15939

Females

5566

F50-54

5566

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17206

Females

6378

F50-54

6378

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14120

Females

4756

F50-54

4756

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

14374

Females

5011

F50-54

5011

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12517

Females

4071

F50-54

4071

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12749

Females

4323

F50-54

4323

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14796

Females

5466

F50-54

5466

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15871

Females

5960

F50-54

5960

Passing Analysis

Category:
Athletes Passed
4193
Passed By
329
Net Change
+3864
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22487
5K → 10K296221+75#22487#22412
10K → 15K53735+502#22412#21910
15K → 20K53517+518#21910#21392
20K → Half1293+126#21392#21266
Half → 25K4742+472#21266#20794
25K → 30K56412+552#20794#20242
30K → 20M3173+314#20242#19928
20M → 21M19112+179#19928#19749
21M → 35K1770+177#19749#19572
35K → 23M2883+285#19572#19287
23M → 24M2542+252#19287#19035
24M → 40K2341+233#19035#18802
40K → 25.2M732+71#18802#18731
25.2M → Finish12416+108#18731#18623
TOTALS4193329+3864
📊

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